i got this deal in november
h20, rewiring, new multiswitch put it, OTA, free install for $150 less $200 rebate + 6 months free HD programming.
1. h20 is not hot at all for me
2. answered already
3. not too slow but the time will be longer if u change from HD 1080 channel to SD channel as it switches formats.
4. I currently do NOT have mpeg4 as buffalo has not been rolled out but my HD signal on my triple LNB is sweet.
5. already answered and i agree
6. mine has locked up once, and I think it was something i did

rebooted easy as pie
other issues
u should be able to EASILY get at least 6 months free of HD programming, ask for other programming free if u can get it. ask how much it would be with an OTA as well. a friend got that thrown in for free
also of note, our current setup has a tivo hooked up to the same tv as the hd receiver as we are too cheap to get an hd dvr.
plenty of boxes on the tv
tivo, hd receiver, sterio receiver, 2 speakers, xbox 360, dvd player (needs to be moved)