I also tried my bro's M9 with 35 f2, and a 50mm 1.4 made 50 yr ago. Leica lens are like Rolex, and ours is casio. Sweet.
But the M9 is nowhere as refined as their lens. My brother's copy is actually broken as far as I know. It maybe a firmware problem, but I expect it work 100% if I pay that kind of money. My photos were gone (don't know why), and shutter won't fire with some "error massage" The monitor is bad, some P&S camera had better monitors. But boy, their lens are sweet.