We joined Uno when moving to a new house in August. The house previously used Virgin, so didn't actually have a phone line. Cue lots of angst while OpenReach messed up the connection twice. *However*, Uno's tech support was brilliant. Phone answers within a few seconds, helpful advice (including skim-reading the manual for my router to help me diagnose whether I was seeing a sync signal) and general friendliness.

Speed tests show a few percent over what I'm paying for and a ~30ms ping.

I would definitely recommend them to anyone looking for a new ISP.