I have often wanted a disk sander, but as an HO scale modeler I felt the powered ones would lead to waste and probably error (another form of waste). I recently scratchbuilt a station and had a heck of a time with the eave brackets. I tried cutting them with a Cricut but the pieces were too small (I've had good luck with other work on Cricut to the point of giving an RPM clinic on it). I then used a NWSL Chopper 2 on Evergreen strip, but even with a sharp new blade, the angles were a little too variable and I had to sand-by-eye to get the angle closer. I have not yet build another station, but I have tested the Ultimation sander with strip styrene, and the repeatability is amazing to me--it's just what I was hoping for. And no 'glowing eye' LED stares at me and I don't need to find an open outlet. I control the speed. The repeater arm has very fine control and while it's a bit too strong for scale 1x4 styrene strip on its own, with a trick of lightly glueing excess on the end of a stack of strip, I can get a 'strong enough' stack of 4-5 strips that allow precision angle, then reverse and sand off the tack glued joint to free up the individual boards with a perfect angle. That's probably a tip in the You Tube series I haven't yet seen, but to confirm that works for styrene in HO (as opposed to the owner's O scale wood that I saw in the demo video) convinced me to write the review. It works! I'm looking forward to scratch building some MoW bunk and tool cars and having the ACCURATE beveled edges for roof peak, for car sides (where there's no butt joint). And I'm sure I'll find more uses for this tool that will probably outlast me. Very satisfied.