Being YouTube, there's of course the normal complains about breeding "deformed" pets, but Munchins are by all reports perfectly healthy cats. Very fast, and jumping well, and with no issues other than the same occasional issues Dachshunds and Corgis have with long backs.
Interesting stuff, Tan! I was looking for something else, trying to identify a stray's breed, and stumbled on this. I immediately thought PLURK NEEDS THIS CAT.
The more "normal" intro: