I've had the 250GB version of this hard disc recorder for about a month now and I'm completely happy with it. I understand if you've got Sky or Cable it's a bit tricky to setup, but if you're planning on using it for just Freeview it's perfect. Some reviews have mentioned that the unit is loud, but I think they must just have faulty versions as mine is quiet as a mouse.
Setup is a doddle... simply put your ariel lead into the back of the Sony, a scart lead between the Sony and your TV, plug it in and you're away. Once the clock is setup and it's downloaded the programme guide (all done via a simple menu) you can begin watching, recording, playing.
Quick extra tip: If you put an ariel lead between your Sony and TV (in addition to the Scart) you can watch normal terrestial without turning on the Sony... or watch one programme whilst it is recording another for you.
If you have American DVDs, I don't think this is multi-region as standard, however I bought my box from one of the sellers advertising on the Amazon marketplace (rather than Amazon direct) because they are selling a multi-region version.
In summary: if you're trying to work out to get this or a Philips, choose this.