Well, for starters, I would want to see the enlarger, I don't see any pictures on the site. Can they put you in touch with someone who has one, so you can look at it first hand? I would want to do this, speaking for myself.
VC papers are quite popular today, and for good reason, though some folks prefer graded papers, so this would be an important decision, and one that would be difficult to make without using both graded and VC papers yourself first. Is there a way you can use a darkroom before you invest in this? Would you buy a new car if you are driving for the first time?