I bought one from HF a year ago and it is the best thing I have ever purchased from HF, works perfectly. I add a bit of oil through the air hook up as extra measure and be sure to grease the pivot. The quality of my paint jobs increased by an amazing amount no matter if spraying hi-end automotive paint, cheapo impement enamel,or rattle cans all work much bettter when well mixed.
Go for it!! It does need a heavy bench and bolted down well. It doesnt need to be run wide open to do a great job, is scary when opened up very far anyway.