I don't really get the whole Mamiya build quality complaint: sure, it's not finished like a Leica, but it doesn't need as much shutter service either. I've broken lots of cameras- but haven't yet killed the M7; I've fallen on it, with it, used it in extreme cold, and spraying water. There are many medium format cameras better built (heavy), but I wouldn't want to carry them all day- I've done my share of that too. Personally, I didn't even consider the Makina because it doesn't have the 43mm option, but everyone has their own requirements- they are very different beasts.