I can't speak for the fibre service, I'm out in the sticks on ADSL2. However, I've been with them for nearly two years, having previously been with Newnet, and for many years before that, with Pipex.
Connection wise - no issue. I get good service, they bill me a good price. I did have connectivity problems for a little while, I called Plusnet support. I from the start suspected the issue was down to wiring inside my house. Support talked to me like a human being, and didn't drill me through those horrible, painful flow charts, he was genuinely very helpful and knew the technology. I rewired the cabling in the house - and service resumed, We are heavy users - mainly watch on demand HDTV, so a good connection is important to us.
I've had awful support from some previous ISPs - you know the sort - over seas, they drill you through awful flow charts, they come up with rubbish answers, nothing gets done, you have to phone again and again until they actually escalate a real issue to BT. I had one telephone supplier (Talk Talk) where I could see the issue - builders had ripped up the telephone cables from underground with an excavator. All that I wanted was for them to inform BT, but no, they wanted me to test the computer and router etc. So the response that I got from Plusnet was very positive and refreshing.
