benzdoc hit the nail on the head. its the user not the tool itself. i have an omni 5000 that i was dissappointed with for about 3-5 weeks. everybody in these posts said they had "more control" with the double action so i bought the omni. so i would read, sull, read some more, wince, and get over to the model table and give it a go. through many hours of practice with the brush, right paint, right thinning ratio, right airpressure, right mind set, right living, holding my tongue just right, and waiting for the moon to be in the right phase, i get self pleasing, woderfully joyous, extra bodacious control and results with my omni 5000 gravity feed. now, i dont have a clue about the iwata except for what ive read, but for the money to results ratio, you cant go wrong with an omni. later.