I went from 5-6Mbps with O2 LLU, (before Sky bought it), to IDNet FTTC 40/10 - that was £28pm or thereabouts on their lowest tariff and was fine. But at the end of the 12 months I felt it worth trying Plusnet 40/2 at £16.49pm instead and haven't regretted it.
Upgraded twice since and now on the 78/19 with a legacy pricing of £19.99pm and my phone still with BT Retail. To get that price now you have to take Plusnet phone, otherwise pay £2.50pm more and a higher setup cost.
Plusnet are experiencing growing pains - up by about a third in the number of customers since I joined, with occasional slight congestion problems but nothing dramatic in general. A few customers do of course have bigger problems, as happens with every ISP. Tommy is one of two people who post regularly running them down - I forget what upset him in the first place.
If a few of you are sharing the cost, then maybe worth looking at Zen, IDNet and AAISP Home:1
My broadband basic info/help site - www.robertos.me.uk.
Domains,site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync ~ 52.8 (interleaved)/15.0Mbps @ 600m. - IPv4BQM