Well, I got a black two lug from Sherry and shot it for a week. The M5 is a great camera and I do not understand all the venom directed at it. At the time of its introduction, it was state of the art for both rangefinders and SLR's. I was paying my way through Indiana University with a couple Nikon F's at the time.
For me the size was not a factor and the weight made it feel solid, like a Leica should. The shutter dial and its visibility in the finder made the camera super easy to use.
However, at the end of the week I returned it to Sherry. I think the overwhelming reason was I could not justify a third film Leica (fifth 35 film body) and I did not want to hassle with selling one of my other cameras. And I really like the M2, perhaps my favorite film Leica body.
If I decide to add another film M in the future, the M5 would be at the top of the list.