Construction problems. (Great but a ratchet instead of the key provided)
The thing is stable and sure. Had it not fix on the ground, as another reviewer has suggested.
What I did before ordering not as clear, and what I would therefore like to mention it again, is that the seat and front the thing are height-adjustable. I am 188cm tall and slim and have no problems.
Because the device offers many methods, it must also contain many moving parts and are accordingly unstable / loose, as if you have a separate device for each exercise, like in a gym. But that's the only negative point for me, and is in the price probably unavoidable.
I can not say anything because I do not yet possess it as long on the long-term suitability.