I have the 1610 which is the smaller version. I use it for making circuit boards. Initially I had a lot of issues with it, the biggest problem turned out to be the spindle wasn't quite straight. After a third motor was fitted, it became a totally different machine. For circuit boards, a piece of MDF bolted to the spoilboard made a big difference. This could easily be resurfaced and being flat and cheap to replace I could use double sided tape to hold the job down rather than clamping the edges which always left a high spot in the centre.

I'm in the middle of extending the Y axis and turning the bed by 90 degrees and extending in order to increase the working area. I should be able to get an area of 180 x 350, so slightly bigger than the 3018, but rotated 90 degrees.