I use a Testors single action, external mix airbrush. I guess it is now the bottom of the line Aztec airbrush. It's my first airbrush, but it works really well for me.
The only cleaning I have to do for my airbrush is to clean the reservoir bottle, its lid, and the siphon tube. The lid has a nozzle at the top that can get clogged, so I use a thin wire (which came with the air brush kit) to clean out the nozzle.
I primarily use acrylic paints, which clean up with soap and water, so cleaning my airbrush takes about five minutes.
I hope that helps a little.
Regards,