Okay I've just received the box last week. I took a while before I went for it mainly because I was taking some time to get rid of Sky Sports. Anyhow eventually cancelled Sky and went for this option.
As an interface box I would say it is considerably better than the Sky+ box I had. Its quicker between menu items and the by far the best feature is the find feature where you can either search for a name or a film etc in the weeks ahead listings. Sky would only let you look at movie channels ignoring the movies on other channels such as BBC & ITV. The playback features and prgram filing is also far superior putting a series in 1 folder and also it has a bigger hard disk I believe
The pictures great and I simply disconnected my Sky box and plugged this in. Be aware ITV HD is not a separate channel but shows up as a red button on ITV 1 when HD is available. THe BBC HD channel looks great but I only have 1080i
On the whole so far very good. no more monthly payments and a good choice of channels. More HD channels to come hopefully.
Much cheaper than anything else out there and doesn't seem to have compromised on quality et al