I bought the Stockroom Supply kit (V Sander) and found it very simple to assemble and quite a bit less expensive than the Sand Flee. Of course, the Sand Flee is already assembled.
As a sander, it works just as it did at the demo I saw at the WW show.
I had a Performax that I hated. Sold it as soon as I built the V Sander.
As you may know, the Performax and others of that type are
thicknessers. The V Sander, Sand Flee, etc. are not. You could look at them as planers (Performax) and, joiners (V Sander).