I have the truing stand that came as part of a package deal with my Wrench Force (aka Ultimate) repair stand.
This thing is about as simple and crude as they come. It's pretty much just a U-shaped piece of Aluminum flat stock with notches cut in the top of each leg to hold the axle ends and a clamp at the other end that goes around the repair stand's upright. The "feelers" are a pair of pivoted aluminum flat stock pieces with threaded bolts as the adjustable clearance gauges. You even have to flex the uprights to compensate for front and rear wheel OLD differences as there is no width adjustment. Compared to it, the TS-8 is really sophisticated.
That said, it's perfectly functional. I've built a couple of wheels from scratch and trued many others using it along with a low cost Minoura dishing tool.
If I were building wheels with regularity or as a business, I'd certainly get something more solid and elegant but, for occasional use it's been fine.