Paul

I already have FTTP as a back-up (just 150M atm).

My biggest gripe is the IP changes far too often.
I know VM is technically dynamic, but it stays the same for years normally.
If I decide to switch, I'll have to look at the business offering, as thats a fixed IP.

Another consideration (any why I'm in no hurry atm) is that if I left VM, we would lose our two ntlworld.com emails.
Thats not a big issue for me, I dont use mine much, but my wife uses hers, so it will mean a lot of updates to her online accounts.