This unit is sold by many outlets. HF is usually the cheapest when purchased with a 20% off coupon. Overall, except for the Eastwood offering, most were under $200 retail -- and luckily I found a 20% HF coupon in Machinist's Workshop magazine and coupled that with a sales price from the HF flyer. Got a great deal -- out the door for $109.
It was easy to assemble and the parts have a good fit/finish --
To make the best use of it, I exclusively run Tractor Supply Black Diamond 60 grit abrasive -- it works every time, and if the air supply remains dry, it won't clog.