After my old provider left me without a website for a week, i had to change provider.
Calling around and sending e-mails to many providers, i will not name, instantly showed me who was good and who was bad.
Some even now still have not come back to me.
Smart have helped me move my site from GoDady and even tuned it for me. They are a great bunch of people in the UK and i would recommend them to anyone looking for fast and reliable web hosting with great customer support.