Not got it myself, but my sister has O2 broadband (not sure about home phone) and says it was really easy to set up and it's cheap. I know her mobile is also through O2 and she gets a monthly discount on the broadband.
Customer Service is also apparently very good - unlike Talk Talk who I am currently with :-(
Not sure if I can have O2. I think, like Virgin, it's only certain areas... though I may have got that completely wrong!
That's brilliant! I'd definitely go for that. I think that's what my sister got too, as a customer they just randomly phoned her with a really good offer.
She says they're really helpful as well, as I know she had a few problems in setting it up, which they were quick to sort out.