Brilliant. I have no hesitation in recommending 20i
I am busy migrating sites from Heart. The level of service at 20i is fantastic. The support team deal with my questions generally within 5 minutes.
The control panel is very well laid out and intuitive to use.
The best part is the migration tool. It is making moving sites so easy.
They are also generous with their mailbox sizes and offer free SSL which is a massive bonus for my clients.