To me that augurs well for FTTC as it suggests you have a good D-side. (The connection between you and the cabinet. E-side is cabinet to exchange).
I'm a strong Plusnet fan these days. I'm out of contract, having happily restarted it eleven months in. (Previously Prodigynet, Newnet, O2 LLU, IDNet FTTC). I have no intention at the moment of looking around.
The first-line support is good compared to the other big ISPs, and is UK based, but unfortunately due to rapid growth they currently have a problem keeping up with support capacity. Phone wait times can be very long, and tickets are typically taking days to be dealt with. The reps who visit the in-house forums a lot and here frequently are good.
Sky seems quite good. BT Infinity appears to be losing a fair few, many to Plusnet, partly through resenting subsidising BT Sport, and recently because of the latest ludicrous line rental hike. Though admittedly Plusnet have raised theirs, just not as much.
Several smaller ISPs have decent reputations. Alphabetically - AAISP; Aquiss; Freeola; IDNet (too expensive which is why I left); vivaciti; xilo/uno; Zen.
My broadband basic info/help site - www.robertos.me.uk
| Domains,site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync ~ 56.6/14.1Mbps @ 600m. - BQM
"Angels can fly because they can take themselves lightly."
- G K Chesterton.