Which VPS is better to sign up with?

[Maichik]

Which VPS (luxhosting.lu or hostingsource.com) is better to sign up with?

[Goskin]

I am thinking to move several sites to hostingsource.com Cheap VPS, just to my life easier because it works so well.
Their customer service is really great. They have helped me a lot and I got free domain names even I didn't signup for a new account when that offer was. (Really helpful and friendly customer service).