This is an excellent introductory item for CNC engraving at a very reasonable price. Delivery was prompt, kit was complete. Construction took several hours, but it pays to be slow and carefully check alignment at each step, as there are many places where there is nothing that forces correct positioning, and it must be done by measuring. Consider the construction sequence carefully at each step, as the order in which things are tightened down has a big effect on alignment. Machine worked first time using the supplied examples. This is not a heavy-duty machine and cannot be pushed hard without flexing, but for the price it does a great job of light cutting and etching. Adding end stops, additional stiffening and other 3D-printed accessories is easy thanks to the X-rail chassis (except for the Z, where there is nothing convenient for attaching). The controller is by VigoTec but I can't find any details, which is disappointing as I would like to disable Z-Axis homing (which isn't used for CNC) in the GRBL (rather than using a custom homing command).