I've not tried Kbin myself, but I've poked around it and the husband is on there so I've had a detailed tour. Initially picked Lemmy because I found the design of it in general to be more modern and pleasing, and seeing him use Kbin has definitely reinforced that choice for me.
Then I see threads with tons of people saying it's the exact other way round and Lemmy looks too old fashioned for them!
So I guess what I'm saying is we're all just clueless apes who have no idea what we're talking about and it's good there's an option for everyone ๐
I'll probably make a Kbin account at some point anyway though since that's the easier codebase for me to contribute to.