Been with Demon for sometime with hardly any problems.Demon said they could give me upto 8Meg I never ever even got 4Meg, customer service is asolute rubbish, all for a princely sum of £22.99I than read some reviews of o2's service, so I changed over.I went for o2's 16Meg service for £10 a month as I am a o2 customer already I get £5 off. Superb change over with o2 keeping me upto to date all the way through the process. It took roughly a week to change over and I lost broadband for one evening.I had to call customer service for some router settings as I wanted to use my own router, call was FREE fast and friendly and I was given eveything I needed to get my router online.Once I was online I checked my down and up speeds.Whoa 13Meg down and 1Meg up.All in all the best broadband package I have ever had. As somebody else has said, a complete no brainer.