To help with some of the points raised.
The picture quality is great from BBC1 HD, ITV HD, C4 HD, and BBC HD. If you connect your Amp via optical the T2200 will transcode into Dolby Digital 5.1.
MKV films look great in 1080p and can be in DD 5.1 too.
If you're recording one HD programme you can watch another, or play back a recording from USB, or pause and rewind the programme being recorded.
If you get lock-ups on channel change simply disable "interactive services" from the menu - never happens again.
You can programme nightly wake-up reminders to keep the clock on-time.
You may or may not actually need to seek out and install the recording firmware first with a new box - try yours out first.
So, there are solutions to the problems mentioned, all-in-all great value for money.