Yes, I've been hosting with them for years, but only in the past cpl yrs I have 'shared' server, so they do the actual install. I have a linux server, and so far I haven't had any problems.

Is Zen-cart working smooth with Paypal?
The shopping cart I'm using currently does not pass on the order details if the buyer doesn't click back to my website after completing the payment. So that always gives me trouble...grrr