Review coming soonish.
I have owned one of these since Feb 2015. I have used both a MakerBot Replicater 2 and 2x prior to it. I must say for the price point of the PrintrBot ($600) I am impressed with this thing. It is not a review unit. I bought it for the business. Many of the blue-colored 3D printed items in my videos were made on this machine.
I did build a box around to to keep dust away, and counteract my unyeilding habit of having to set random things down on top of it.