Well...custom control panels have always been a pain in the rear for many people...and clustered systems are often quite slow. I'd suggest you to stay away from them if you're planning to host something serious. BTW, they are known to have billing issues often
Google any hosting company (or domain registrar, for that matter) and you'll find tons of bad reviews about them. Pick a hosting company with a control panel you're familiar with, and someone you know you can trust. I've been using Dotster's hosting for quite a while and have been very happy, but nothing is right for everyone.