I've been using Mamiya RB67 Pro S since I really fell in love with Medium Format system. I only own two cameras (Nikon FM2n & Mamiya RB67 Pro S). Up to date, I am a proud RB67 owner. It never disappointed me. I believe every individual has their own preferences. I don't mind carrying the heavy beast around; climbing the hills, walking at the streets, visiting abandoned buildings, etc. It served me well. Well built body, solid. I have a few 6x7 film backs that I can interchange accordingly; B&W, Color & Infra Red. Price wise, it's not as expensive as Hasselblads. Quality wise, they both show nothing much difference. Here's an example from RB67. Kodak Tri-X 400. Cropped.