I've owned the a C330 kit very similar to the one you are looking at for many years. In just this last year, I also acquired an RB67.

If you like working with a TLR, you will like the C330f. And a body plus three lens kit is very small and light. The lenses are good and I like how they handle.

That being said, the RB67 is much more of a departure from what you currently use, so may add more variety to your options.