This is my first Jaspers stand and I have a lot on there, Hydrasynth Deluxe, Novation Summit, Behringer Poly D and Odyssey and that's quite a bit of weight but the stand remains rock solid.
I did initially wonder if the locking supports would slip at all but they are rock solid - not a chance of that ever happening!
They are also very light, even when fully assembled.
My only slight gripe is the price which I think is somewhat excessive for what you actually get but it is quality gear.
Overall I'm very impressed and will be buying a few more in due course.