I have the Humes and Berg one, and I think it works really well. When I got it, iirc, I had determined that all the hate was for an older version made with that same weird hardened cardboard feeling material as their classic straight mutes. The metal one, like this, was supposed supposed to be better. This might be what gets all the hate.

I tried a quick google search to make sure I wasn’t giving you wrong information, but I couldn’t find the forums I remember reading. You can try to research my claims more if you want, but what really matters is that I don’t think you can go wrong with that Humes and Berg mute off of amazon