I could care less about ISP's e-mail services. I stopped using them years ago.
Regarding the changeover, my ex-Verizon FIOS, now Fairpoint FAST connection is operating perfectly. No hiccups that I can report. Latencies are the same, and down/upload speeds are just as they were with Verizon. As long as it stays that way, I have no problems with Fairpoint.
Now if they could get the online billing and payment service working, I'd be even happier...