LiquidWeb is absolutely the best host I have ever used. I have probably run through 10 different hosts using so-called quality hosts based upon webhostingtalk forums. Until I got to these guys, I was always dealing with issues they refused to help with.
The support team here is phenomenal and help me with tasks ranging from removing hacker-injected code to installing new versions of php or adding a module required to run another web software. Nothing is too small if you get managed support.