Ive actually read quite a few great reviews on the Master line of Airbrushes from TCP Global with the good reviews outweighing the bad reviews.  While there are better brands available for a beginning model builder that cant or dont want to lay a hundred or more out for a airbrush to begin I dont think Id hesitate to start with a Master.  Badger of course is my brand of choice and you cant go wrong getting a badger any model.