Although this appears to be a solid build machine, mine came with a defective controller, and it is taking ages to get it replaced. It is also ludicrous to suggest that this can be assembled in a couple of hours. Mine took at least six hours. There were a few problems. I had trouble aligning some screws, requiring the use of a clamp to align the frame. Additionally, one of the clamps was defective, and a couple of the screws did not work properly. I did not feel that the instructions were as clear and detailed as they should have been. Even the videos, well, helpful., Often didn't provide adequate detail.
I bought a package which included a router attachment however, the instructions for the use of that attachment was essentially useless because they described the attachment to a different machine. I have tried to get clarification, but so far no luck.
All in all, this seems to be a well-built stable machine, my main concern is the lack of US support. Had I been aware of this difficulty I very likely would've looked elsewhere.
The company offers a brief option for a return, but it would be almost impossible to re-package all the parts as they were originally sent and that seems to be a requirement of the return. Of course, that doesn't even consider the time it would take for you to take it apart again.