The specials are mainly just Mei conversing with herself (or the cat?). There's no consistency in the specials whatsoever. You might argue that there's pretty much nothing. The third special—for instance— is just the cat meowing a song. It's cute, but hardly anything worthy watching.
The episodes take roughly ten minutes to get through, but that's if you're even up for it. I don't think you have to 'regret' watching this as long as you don't expect it to be funny.
