Rangefinders and the P67 have the distinct advantage of working like a 35mm SLR. You just swing open the back and do your thing; thus no removable parts that require another hand or pocket while reloading.
But if you need to change film mid=roll, you loose the rest of the roll. If you are using a slower film during the day and have 10 exposures on a 36 exposure roll and you need to change to high speed film for available light photography are you going to waste 16 exposures on the first roll?
Warning!! Handling a Hasselblad can be harmful to your financial well being!
Nothing beats a great piece of glass!
I leave the digital work for the urologists and proctologists.