Thanks for the comments, Greg!
Yes, this is my first rangefinder! I really can't remember what prompted me to get a rangefinder, but I'm glad I did. If I'm not mistaken, I was just looking for small compact lenses and came across the Pancake II and found some great photos taken with it on Flickr, particularly with RFF's own Avotius, and after doing a lot of research I found rangefinders to be really suitable for the type of shooting I liked (street, documentary, PJ).
I'm really liking the R2 and am glad I got it. I was a bit hesitant at first because it really looked like a toy (by appearance, atleast) but was pleased it was far from it when I got it. It's a lot lighter and compact than the SLRs I'm coming from (20D, Elan 7, New F-1, Hasselblad), but not to the point it's too delicate to have some real mileage run on it. I love the viewfinder and how much more "open" it feels compared to SLRs and how much easier it is to focus. I think my only gripe, if I can even call it that, is the shutter noise. It could be a tiny bit quieter, but seeing's how I'll generally be using it outdoors, it shouldn't be too much of an issue. The short throw of the Pancake II's focus is awesome, though I think the focus could be a bit more looser. I'm hoping that will come after some more use; I purchased a CV40/1.4 off ebay for a cheap price to see which lens I preferred and found its focus much more ideal.
Now that I have a rangefinder, I'm starting to wish I hadn't sold off all my 35mm film when I thought I was going to focus on medium format!