Looks like a good deal to me. Rex is right, if you can, you may as well go to the full size system. The only reason to go paintball in my opinion is for ease (not frequency!) of filling or compactness. I don't really believe its any cheaper than a rex or a blueline in the end. I'm just trying to save room in my stand.
G_sharky, I think its a bit different in the US when it comes to cylinders, it seems most people buy them, here all the vendors will rent you the cylinder at a very small rate or even free and you just swap the cylinder when it runs out. It allows for depot type service, I don't think the majority of places do a fill while you wait.
If you're interested in a good looking cylinder, you could probably get them refilled, but you'd want to talk in advance to your Air Liquide, Praxair or Boc gasses.