It is a good MF camera.
BUT for hiking, consider the bulk and weight.
Being rather older than I was in college, today weight is a significant factor for me. Whereas in high school and college, I thought nothing of a 20 pound camera bag.
If I would get an RB/RZ it would be for use as a studio camera, or a near the car camera.
I even built an Olympus OM kit to replace my Nikon F2/F3 on longer photo trips, again for weight reduction.
About format, I found that NONE of the various film formats is "ideal." I shoot and print square with 35mm, and I make rectangles from a 6x6. To me, the actual image format is dependent on the scene/subject, not the camera/film. Having shot 35mm and 6x6 I have become more aware of shooting to capture the scene/subject and not be overly concerned with the film format. Because even with 35mm or 6x7, if the print size changes from 5x7 to 8x10, or 8x10 to 11x14, the format ratio changes, so you end up cropping anyway. So I've learned to leave cropping room around the image, no matter what format I shoot. And if you print and mount, you can make the print ANY format ratio you want to.