Yes I'd certainly recommend them.
I've only been with them for a few months. I'm very happy with their service - a vast improvement over the old ADSL line I had with Demon, especially in terms of reliability.
Their help desk also seemed quite good the couple of times I had to call them to change phone features.
The installers who did my house were very amenable to my requirements when installing the cable. You've already got the cable so I guess it will be a bit different. With regards to the phone service, in my area (ex-Telewest), the phone is a separate cable and they can probably route that to the same place your BT socket currently is so you can keep your existing internal phone wiring.
I'm not sure on what installation looks like if you have the TV service and broadband (I don't have the TV service). Perhaps someone else will answer that.
The only caveat might be to be aware of their traffic management limits - I think most people don't bother about them (like myself - even with 5 PCs and a couple of consoles) but heavy torrent users seem to complain a lot.
Edited by Daemon66 (Fri 17-Apr-09 17:15:24)