I haven't heard about either of the web hosts you are specifying about. But if you are in seek of a reliable VPS web hosting solution, I would suggest you to check in with the services from
www.9cubehosting.com/?lang=en&action=vps-openvz . This web host provides a wide range of VPS hasting plans at competitive price. You can choose an appropriate one which suits you. They are also US based web host and they provide top quality hosting solutions under Linux platform. It would be a good deal for you to sign in with them. They offer bunch of freebies with every hosting package. All the best mate.