I have that exact humidor. Bought it about 3 months ago from that same vendor.
I have also been seriously thinking about the Oasis or Oasis Plus. It's a decent humidor, seals well, and I am happy with it, BUT the 3 "extra large" credos that it comes with aren't quite up to the task.
Before you buy it, you should probably know that the bottom drawer is a separate area that will hold quite a few cigars, but it is not connected to the main area of the humidor. So whatever humidification you get for the top area, you'll probably want to consider something for the drawer if you'll be storing cigars in there. I think I have pretty much decided to get either the Oasis or Oasis Plus (not sure which one yet) for the top area, and I'll use a combination of credo and beads in the bottom drawer. Right now my plans are to store my "everyday" smokes in the drawer and use the top part to age a couple of boxes as well as keep a large number of singles on the trays.
Good luck with your purchase! I think it's a very nice humidor for the price. (And a tip.... when you're browsing their website, navigate away from the page before you buy anything. A lot of times they give you a pop-up window with a 5% off offer, and you can use that to get a discount.)