This show IS in fact getting better. I really don't like saying this (especially about a show like this one), but I found myself really enjoying the episode. Sure, "Shake it Up!" maybe cliche or may have not so great acting, but it has all that charm a Disney Channel show should have.
It's already proved to be not the worst thing on Disney Channel (see Suite Life on Deck). We got the elements of an entertaining family comedy, some dynamic characters, and just some funny gags here and there.
I will definitely be tuning in again. I may have judged this show too quickly. My only complaint is Rocky, that girl is just incredibly annoying. Everyone else is pretty solid though.