I think the C330 is an interesting camera.
It has two of my favorite components for a camera, square format and a wlf.
When I started with mf-cameras I bought a RZ system from a pro going digital.
The kit included lots of lenses and half a freezer with film.
It also included some different roll film holders, 6x45, 6x6 and 6x7.
And suddenly I become aware of different form factors in a way that I was not as a 35mm shooter.
I become addicted to the square format, and I realized that I mostly see "square", or multiples of square.
So, now that I am rebuilding my RZ-system again, I will get a 6x6 holder for film.
But if you find out that you hate the 6x6 format, then you are in some trubble with the C330.
One way is to make some thin markings on the ground glass for your preferred format to help you compose.
If you have perfect visualization then of course, no problem.
Then it is just to: Look, shoot and then crop to your preferred form factor.
What really will increase your presence in the analog process is to start develop the film by your self.
Suddenly you will gain controll over the whole chain of events, from seeing to the finished result.
(scanning for digital print or analog printing is a matter of taste, but digital is a quicker way to get good results).
And it might be the best way to also get controll over the quality of development.
I don't know the situation in your area, but here it is big problem with quality from labs.
I have had really bad experience with pro-lab that delivers really horrible result.
So if you have a good lab then you are lucky.
Regarding lenses, I think it is hard to recommend someone what to get, even based on the individual preferences in the 35mm world.
There is something happening when you switch format. Especially as you go for really big film format.
So you might find that there suddenly is more that two lenses in your camera bag...
But shooting analog is interesting, it drags you more into the whole process, in a way that I don't think digital does.
But that is of course my personal view