As Ryan mentioned it is a machine that is customized by you, assembled by MatterHackers. Comes with the MatterHackers guarantee and customer support, so you're sure to love the machine.
The printer is based on the very robust and proven Prusa i3 design. We have hundreds of hours of testing in the books for the machine and customers are very happy to have received an customized, assembled, and tuned machine that was ready to go out of the box.
Don't hesitate to call and ask MatterHackers' sales staff if you have any questions!