We've been with them since joining Tiscali in 2004, minor niggles but sorted easily. One engineer took control of the laptop remotely and repaired whatever the problem was at the time. Since T/T took over we have had consistent connection (16/18 down and 0.8 up), adequate for us. The original Siemens router gave out and T/T replaced it with their latest Huawei gizmo foc with no encouragement necessary.
Rarely any spam to the inbox, they sorted out the filtering system a couple of years ago and the phone line is good too, don't get many spam calls either.
Up to three months ago we were paying £17 per month for line rental, free 24/7 calls and b/band, 6 months at this price then 12 at £25, average approx £22.
We are confident that when the contract expires they will come up trumps again. Also about to sign up for their half price mobile sim, too good to miss.
We are avid motogp fans and are choked that BT have snaffled the exclusive rights. That said we wouldn't swap our consistent T/T service unless they overpriced themselves, which looks doubtful for the foreseeable future.