Difference from other Sex Swing Stands?

I've seen these same stands made by multiple companies, and I have to wonder: is there any difference between the brands?

I got my sex swing stand from Edenfantasys back when they carried it from another company, but there are also a few other brands out there. I'm wondering if the weight capacity is any different, or the sturdiness is any different between any of the brands.

Does anyone own multiple stands?

Thanks for the help!
Sir