I bought Harbor Freight's Airbrush and compressor set nearly 12 months ago on the recommendation of another forum member and have not yet regreted it despite having used it all year and painted 20 tanks, and counting! (tho on reflection it was about the only good thing I bought from them... )
It's not the best but its not bad - and the dual action airbrush that comes in the kit is definitely better than the single action Badger 200 I bought afterwards - that cost more than the origial airbrush and compressor put together [:@]