Have a blast with the R3A. I really like shooting with the 1:1 finder. Leave both eyes open and the frame will just float in space if you're right-eyed. The electronic shutter release is a bit more hair-triggered than the R2 and earlier Bessas, but you'll get used to it. Can't speak to the rattling lens shade, as my 40mm lenses are older vintage, and two good reasons for getting the R3A in the first place.