I love my AZBox but to say the current firmware is really good isn't supported by the multiple threads in this very forum discussing bugs and misc work arounds. Its great hardware but the software isn't currently on the same level.
Keep in mind that this is still "Alpha" Firmware, very early in testing.I wouldn't recommend the E2 at all. It just not for the Ultra. Doesn't have HDMI and altogether too limited.
The blindscans I have been doing after I re-did every satellite listing in the box has increased in speed. Coupled with the fact that before I allow it to scan I make sure that the Minimum Frequency is changed for C-band to 3700.Overall, the current firmware in the AZBoxes is really good. At this point, I see no issues, other than the really slow blindscans.