As you know i own the Leica MM for quite some time now. I also use the Leica 35 Lux ASPH 2 as my main lense. I also bought the Leica 24 Elmar for my M6. The M 240 is a great camera with lovely colors and black & white results, but I decided to buy the MM as I found myself shooting more and more black and white with my previous M9.
The MM has a fantastic tonal range and together with the 35 Lux makes a great combo. It took me some time to get used to the fact that I had to stop seeing in color, the shadow light differences became more accentuated,and the photo subjects just changed.The better , actually very good ISO possibilities gave me shooting possibilities i didn’t know before.
It also changed my style of photography for the better I believe.
The MM gave me also a chance of returning back to filters especially red (in order to accentuate the white clouds, the yellow \ orange for sunny days and simply for getting darker and crisper photos.) The MM + the filters gave me back the old style kind of photography which I long deserted and missed so often. It is a great site you have.