It's a stable sax stand, I mean, It does what it's supposed to.
I bought two of these, and they have suited my needs.
Obviously it's a bit annoying to transport to gigs if you're used to playing soprano sax/clarinet, where you can just keep the stand in the bell, but as far as I know, there is no such solution for larger saxophones that is as stable as this type of stand.
It's definitely stable enough, both for alto and tenor. The build quality feels good and sturdy. And you don't have to worry everytime you put the sax down, as you might do with other stands.