I have had a DTivo for two years, and recently got an R15....
Here is what I have gathered so far in terms of a comparison
I wanted the R15 because it was pleasing to the eye and I missed features like the Picture-in-Guide and Mini-guide (DTiVo does not have these), I had read many reviews basically telling anyone not to get it because it was not as "good" as a DTivo but I never really understood what everyone meant (not that, it would have stopped me, I was bent on getting one)
I have now had my R15 for about two weeks, the look is totally different from a dtivo. The dtivo has more of a techy feel while the R15 has a more basic, well...satellite receiver feel.
One of the biggest problems I have with the R15 is the response time, its not like using a D10 or D11 (both the R15 and D10 / D11 use a nearly identical interface), when you push a button (any button) on the R15 it takes a while you for to see any response from the receiver (sometimes it can take a few seconds) this is not good because then navigating menus there is such a lag time that a person can become frustrated and just quit.
One good thing is the Picture in guide, no matter where you go in the system you can continue watching TV, you even retain the ability to pause, rewind and fast forward. On a dtivo this is not possible if you did anything like view the guide or go to the List you were taken away from the picture and could not continue watching.
Another bad thing is that if you leave the "live programing" to view a recorded program you will loose the live buffer you will not have anything saved and it will be like you just turned the DVR on, this is not a problem on the DTivo and in fact the dtivo has two live buffers rather than one.
Another good thing is the mini guide, you have the ability to view a small semi-transparent one line guide on the bottom of the screen, this is useful if you do not want to channel surf or bring up the big guide. Yes you can schedule recordings and view info from the mini guide, but viewing info will zoom out and bring up the full info screen, of course dtivo does not have this feature
On the Bad side the R15 has serious recording issues (whats a DVR all about after all) it neglects to record random shows from the series link, and if the DVR is off and you do not press select on the "change the channel" to record message then the show will not be recorded. On a DTivo it changes the channel automatically, on an R15 it need your input which means you will miss alot of recordings...hey now that i think about it that must be why it is not recording some shows from the Series Link (the series link is the equivalent to DTivos season pass, basically they record every episode of a show). My R15 is in the main room with 15 series link's perhaps the R15 cannot handle all that is set to record
I like the fact that on the R15 you have the ability to record the music channels, yes you CAN record the XM music channels on the new R15, on a dtivo this is not the case, you are given a message that says the service is not available
For people moving up from a DTivo, it will take some getting used to and most of us will probably go back to our DTivo's until these issues are resolved, however new users will have nothing to compare it to and most likely will not find much fault in the new R15.
Basically it feels like we are all beta testers, unfortunately this is the finished product, I'm sure Directv will come out with an update to the Firmware (I just wonder how long it will take)
I did not list everything because that would take to long but if you have any questions at all feel free to ask and I would be happy to answer
Here is what I have gathered so far in terms of a comparison
I wanted the R15 because it was pleasing to the eye and I missed features like the Picture-in-Guide and Mini-guide (DTiVo does not have these), I had read many reviews basically telling anyone not to get it because it was not as "good" as a DTivo but I never really understood what everyone meant (not that, it would have stopped me, I was bent on getting one)
I have now had my R15 for about two weeks, the look is totally different from a dtivo. The dtivo has more of a techy feel while the R15 has a more basic, well...satellite receiver feel.
One of the biggest problems I have with the R15 is the response time, its not like using a D10 or D11 (both the R15 and D10 / D11 use a nearly identical interface), when you push a button (any button) on the R15 it takes a while you for to see any response from the receiver (sometimes it can take a few seconds) this is not good because then navigating menus there is such a lag time that a person can become frustrated and just quit.
One good thing is the Picture in guide, no matter where you go in the system you can continue watching TV, you even retain the ability to pause, rewind and fast forward. On a dtivo this is not possible if you did anything like view the guide or go to the List you were taken away from the picture and could not continue watching.
Another bad thing is that if you leave the "live programing" to view a recorded program you will loose the live buffer you will not have anything saved and it will be like you just turned the DVR on, this is not a problem on the DTivo and in fact the dtivo has two live buffers rather than one.
Another good thing is the mini guide, you have the ability to view a small semi-transparent one line guide on the bottom of the screen, this is useful if you do not want to channel surf or bring up the big guide. Yes you can schedule recordings and view info from the mini guide, but viewing info will zoom out and bring up the full info screen, of course dtivo does not have this feature
On the Bad side the R15 has serious recording issues (whats a DVR all about after all) it neglects to record random shows from the series link, and if the DVR is off and you do not press select on the "change the channel" to record message then the show will not be recorded. On a DTivo it changes the channel automatically, on an R15 it need your input which means you will miss alot of recordings...hey now that i think about it that must be why it is not recording some shows from the Series Link (the series link is the equivalent to DTivos season pass, basically they record every episode of a show). My R15 is in the main room with 15 series link's perhaps the R15 cannot handle all that is set to record
I like the fact that on the R15 you have the ability to record the music channels, yes you CAN record the XM music channels on the new R15, on a dtivo this is not the case, you are given a message that says the service is not available
For people moving up from a DTivo, it will take some getting used to and most of us will probably go back to our DTivo's until these issues are resolved, however new users will have nothing to compare it to and most likely will not find much fault in the new R15.
Basically it feels like we are all beta testers, unfortunately this is the finished product, I'm sure Directv will come out with an update to the Firmware (I just wonder how long it will take)
I did not list everything because that would take to long but if you have any questions at all feel free to ask and I would be happy to answer
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