For years we had our sites all on Cartika Hosting and we loved it. For about five years I think. We recommended Cartika Hosting to all our clients and put up a lot of sites on Cartika.
The disk space limits and even bandwidth were always pretty tight in comparison to what you could get with Dreamhost, Bluehost or Hostgator. But we didn't mind.
What we wanted was quality and security and for that we were prepared to pay a significant premium over discount hosting. We called it "business quality hosting", after a rough ride with our own site Foliovision on Dreamhost for a few months with our client sites on Hostroute.