Got one of these from BT today, aside from the dumbass delivery company just leaving it on my doorstep I am quite impressed with it. Wasn't even in a cardboard box, was just wrapped in clear film so anyone who wanted to nick it could have seen what they were stealing.
I ditched sky years ago and since then haven't bothered to get another PVR box but BT offering this new one for £50 (+£4 per month vision subs that becomes £5 per month in Jan 2013) and so I thought it was worth a go as these sell for £250-£300 each if you buy them outright with no BT vision.
They also included £80 worth of homeplugs for free which is cool, I have some already but I am sure I can find a use for these extra ones or flog them on eBay.
Nice and easy to set the box up, runs very quietly and starts up nice and quick once you change the ECO settings.
The menus and navigation are very good, it comes with a decent remote control and the EPG is excellent. Having one menu to look at for current programmes and programmes in the future that you can record or set a reminder for was normal on Sky and other systems years ago but the integration of Scrollback (last 7 days of shows that can be watched via IPTV right from the EPG) is a new one on me and a really nice feature.
It also has the separate menus for iPlayer, ITV Player 4OD etc so you can access programs through the more traditional interface people will be familiar with from their PC and other devices.
Cant see any of the on demand paid features getting much use (unless BT's own premier league football offering next season is priced very nicely) but for the other functions I think its a really nice box and a steal at the price its currently available at from BT. I think Talk Talk are also doing a deal on it too from the adverts that have washed over me recently.