Pentax q or K01

I just purchased the Q, and I am very happy with it, however, for a little more I can purchase the K-01.

I was thinking about getting the toy telephoto lens and an extra battery. It almost evens the price with the K-01.

I know the obvious difference is size, however, how much better are the pictures and the handling of the K-01 over the Q?

Any feedback would help.