Bottom bracket repair stand experience
There are 2 types of repair stands. The bottom bracket version you pictured is compact, stable, and travels well. It is a good stand if you are using it occasionally for your own maintenance. Downside: You can only work on one end of the bike at a time. That makes it slow, and awkward for mechanics doing volume of work, or if you want to just quickly throw your bike in a stand for a gear check.

The seat post mounted stands are larger (generally, sometimes, but not always less stable, but far quicker and easier to use. Downsides depend on the model, but generally: Less stability, and more difficulty working on an aero bike due to frame and seat post shapes not fitting in the clamp.

Aero bikes are where the BB mounted stands excel, and are the primary and most useful quality that they have and why we have 2 in our workshop. If your frame doesn't work in a seat post clamp based stand, they are your best option. FWIW, I've used the Park PRS-20 and 21, and the Tacx Spider Team. The Tacx is more stable but a far larger footprint. The park has better UX design, more user friendly position swaps, and things like that.

I hope that helps.