I got a bunch of duds out of the packet, even though they had no marks or anything that would indicate they were faulty. The sound is cool, but a lot of them failed to register input even when bottoming out. I ended up having to get rid of them because they were not functional. I would say only buy them if you are willing to risk wasting money on a non-functional keyboard with dead switches.
A lot of what you expect from Haimu: consistent smoothness and a big P bump. The metal tips make these stand out, however, and while they may take some adjusting, the tippy taps become kind of addicting once you get used to them.
Haimu makes the bottom-out even more distinct by adding their S-stem silencing mechanism to these, but only to the top-out. Unlike silicone dampening, the S-stem doesn't completely silence the top-out, but it does make the sound quite a bit milder, emphasizing the Mulberry's unique bottom-out.
Very much worth a try!