I’ve been a customer for over a year with HostUS and currently have five active 768mb OpenVZ services with them.
Let me go ahead and say that I’m absolutely 100% satisfied with their services over the past year.
I use 3 of those 5 services for a cPanel DNS Only cluster which has worked absolutely great. This cluster is used for my primary cPanel server for my customers. If I had any issues with the cluster, it would impact my customers and my websites which it did not.