I don't personally have it but my buddy has one and loves it. You might want to source an extra pump if possible, as the Atmans aren't super reliable. They should be pretty cheap, though. (The pump listed is a "Rock" [followed by numbers], but I'm willing to bet they're just rebranded atman pumps).
Because they're internal pumps, you'll more than likely need to get the exact same one. Whoever you buy the skimmer from should have extra pumps. Just ask them how much an extra pump will cost.