We have had ours for a few yrs now. No issues what so ever and it does get a good workout. Mainly we use it for applique pieces, cut vinyl and rhinestone templates. More the first two.
As far as Cutstudio, it will drive the plotter, but that's about all that it's worth using it for. Of course, I have 4 other programs that can drive that plotter as well (3 of which would be of interest to you). I have been able to cut directly out of Ai, DRAW, and even Inkscape. Since any one of those 3 are better then CutStudio as far as design goes, I would use one or combination of those to run the plotter. If for some reason you can't cut out of one of those programs, then export as EPS and run it through CutStudio.