Should I go to another style?
This really seems to be the crux of the matter.
I agree with Mark. If you have a good teacher, then why would you want to change? If on the other hand, you don't, then yes, you should change. It's not about style though, it's about individual teachers. I would much rather have a good Shin Shin Toitsu teacher than a bad Aikikai teacher and vice versa.