Anyone use the Iwata Smart Jet Pro compressor?

I have one and like it a lot. You can adjust the pressure pretty easily but to get a lower pressure, the compressor will run continuously. Fortunately, it's really quiet. I haven't noticed any pulsing while I am airbrushing, but I'm sure it's there. I'm thinking about buying a small tank that I can attach to the compressor to solve the problem. Two issues I have: 1. the airbrush holder is nearly worthless. It's just not deep enough to prevent the airbrush from being knocked off. In fact, it will fall out on its own if the airhose is twisted a little. 2. The pressure regulator and small glass tank assembly is supposed to snap into a ring on the end, but the opening is too big, so it just sits in there and rattles. Fortunately, it's not loud. It's just aggravating that someone did such a lousy job engineering it. Those issues don't affect the functioning, though. All told, I'm very happy with the compressor for its out-of-the-box ease of use.

I have one as well, but the problem is continuous pressure. It is very obvious when you try to get low pressure for fine detailing. The pressure fades and regain its strength again as the smart switch kicks in.

//Patrik

I have this compressor and like it alot. Its about as quiet as they come. All I added was another moisture trap on my airbrush.

I'm not familiar with that compressor, but any compressor without a tank will run continuously while you're using it.  That may be a concern if you're looking for something quiet.