I have used it for my JCM 900 1x12 combo and it works very well. For the price it is excellent.
It is reasonably robust and doesn't present any worries for what is quite a heavy and bulky 1x12 combo. I'm not sure I would trust it with anything bigger though. It isn't adjustable but the angle and height off the floor is pretty much spot on for my rig so, if I could adjust it, it would probably end up where it is any way.
I have other, seemingly more complex and adjustable stands, but, for all their adjustment, they don't seem to get my amp where I like it and don't give the confidence of stability that this offers. This also folds quicker and more conveniently for travel.
Not a criticism but the only tiny niggle is the arms are the same width as the feet on my Marshall so it has to sit one side or the other rather than exactly centrally. It plays with my OCD as a result but I can live with it.
It is superb value for money and I am certainly considering buying more the same for my other small amps.