We have a 38 foot Jayco Eagle Premier 343, towed by our 2012 Silverado 3500 HD with of course a Duramax and a 4:10 Limited slip.
It weighs a bit too much for easy towing with a Gas, We tried it with our 2009 2500 HD with a 6.0L it hated it!
And with also 4:10 rears it was getting about 8 MPG. The Duramax about 11-15 depending. Not a vast improvent wih the price of Diesel, But Much more comfortable to drive.
I would have to Honestly say, the only benefits for me is , When I bought the my Travel Trailer, it was a Free upgrade to add it. So of course I love it.
LOS issues , none yet! But I don't vacation in the woods, I live in the Woods.
Put it this way, Live Tv isn't that important to me when traveling. So for me to spend an hour or 2 of it to set up a slimline on a tripod run all my wires all over outside I wouldn't bother with it.
We have plenty of Blu-rays.
But the fact the the RV setup is Clean ,Quick easy setups, Basicly plug and play It would be an investment worth looking into.
As far as DVR goes, Next time I'm just bringing the 2 H25s. We don't spend the days watching tv on vacation, we can do that at home!