We had to migrate away from Bluehost because we were on a buggy server (by their admission) and they refused to move us even after 6 months of atrocious hassles.
We researched alternative hosts as best we could, paying attention to industry blogs and various client reviews. We quickly found that finding a good web host is like finding a needle in a haystack, suffering through two grossly mismanaged migrations with first Uber and then Crucial.
Finally we found Relentless Hosting, and although a complex migration is never going to be flawless, the speed and capability of the support offered at Relentless meant that any disruption was absolutely minimised and dealt with swiftly.
The backend is smooth and easy to use, and for value I don't think can be beaten.
We look forward to a long and enjoyable association with Relentless Hosting.