I don't have any personal experience with their support services (other than 1-2 paid support tickets early in my CWP career -- mostly pertaining to cPanel migration issues). I tend to think you'd be better off hiring mercenary sysadmin support, but that depends on your skill set and desired levels of control and DIY-aptitude. But you could give it a go for a month or two and report back... I'd be interested to know!