I'm just about to migrate to them myself, as I think they offer a great 2Mb uncapped package for £24.99 with the 8Mb connection remaining at £24.99, albeit for a regrade fee of £15. That'll do me nicely. All the reviews I've read have been very positive.
Ive been with them 10 months now. Ive had no problems at all since joining. I dont recommend them to anyone though, I want the service to stay just as uncluttered as it is now.
Useful forum site link. Independent of F2s but 'watched' by f2s staff, queries answered and loads of help given.