I've had the misfortune to have repair one and they are rubbish.!
The electronics are cheap junk, wiring is low quality rubbish, spindle is a toy just waiting to die with so much run-out it's a joke.
The frame is ok-ish regards strength but use's cheap bearings and linear components like plastic Lead-nut on very poor low quality acme screws so will wear quickly.

Compared to a Roland.!! . . Well to be honest it just won't compare.? The Rowland will knock it into next week in every way.

The cutting area isn't that much greater anyway it's only 65mm in X and 35mm in Y axis so save your money and buy or build something better is my advice.!!