Lets you try clubs being considered. Even gave me full exchange on a bent shank driver for straight shanked version once I learned to control slice. Owner is a pro and can help you select what you really need. Get over the "hole in the wall" shop (but in a nice area) and pocket the $ saved.
Pros: Cheap! Lots of variety in knock off heads. Knows you and how you play.
Cons: Strange hours, club builds take a few days.