The one depicted by 'soundwave' looks very similar, possibly identical, to the one I bought over two years ago from Aldi or Lidl, I can't remember which.
I wasn't sure whether or not it would really hold a heavy bike suspended in it's clamp to allow pedal spinning while fettling derailleurs but it does although it's important to to find the fulcrum point on the frame and to close up the clamp very tight!
My Kalkhoff PC, minus battery, weighs in at 21kgs -22kgs, depending on which set of scales I use which I feel is probably about the SWL limit, maybe more than recommended. I can't remember reading any user instructions when I un-boxed it and used it for the first time.
In engineering terms, it's definitely a DIY product rather than the kind of thing a pro mechanic would be likely to use day in and day out but for the money, it's fine for most purposes. I have used mine on my other bikes which are lighter and it's less critical to find the absolute exact balance point. One machine of 15kgs and my Cytronex-equipped Cannondale at 17kgs are very easily supported on the stand, clamped almost anywhere on any tube. This is another example of how much easier life is with a lightweight bicycle.
From memory, though mine isn't very good these days, there was a thread about bike stands some time ago and I'm sure several people had purchased the model similar to mine, sold by Lidl/Aldi from time to time. Would I recommend it? Hell, yes! It just makes maintenance tasks and repairs a whole lot easier.
Tom