It's a great lens, not too big (not really small either), very smooth focussing action, and great results. But, after getting one two weeks ago, I find myself using it for a couple of shots, and switching to the Nikon with an 85/2 or 105/2.5. I guess I just don't like long lenses on rangefinders (I had this suspicion I might not - that's why I bought the shortest long lens there is - a 75mm). I'm probably going to sell it soon, and use my SLR's for long lenses, and my Bessa for wides. It's a great lens though - but holding my Bessa in horizontal orientation, trying to get an accurately focussed portrait, shot up close in a matter of seconds, is just too hard compared to doing the same with my SLRs.
I thought the Bessa + 35mm + 75mm might be my ideal lightweight camera kit, but I always end up taking more than one camera anyway - don't really need a lightweight kit all that much.