Welcome to APUG.
I'm guessing that you might be fairly young.
I would suggest that you start your own thread about this in the medium format cameras part of the forum. It would help if you included with your question some information about what knowledge and experience you do have with cameras, and what you want to do with them, so that we could better tell what might be helpful.
I've been using a Mamiya C330 for about 35 years, but when I started I had already used a few cameras, and had worked a fair bit in a darkroom, so it was much easier for me to decide that it would be good for me.