We've gone with purebroadband.net/ftth as we wanted a broadband only (no phone line) package and for some reason half the providers still have phone line and broadband packages when no phone line is required for fibre. Just didn't like it on principle and the fact that I can't remember when I last had a landline. Have not used one in the three years living at East Village.
Because they're the cheapest I'm worried about how good the support is but hopefully it'll get connected and never have to call up about anything. Hyperoptic is very good and would have gone with them at the new place but they're not a part of the IFNL.
Purebroadband 30Mbps package £24.50 with free installation if you buy their router.