actually not too bad, I find the 50/2 harder. It's a lovely lens; older than me and incredibly sharp.
Agree completely on the too much PS, although most of 1x.com is worse.
I thought my "dual range" 50/2 wasn't sharp (reputedly the sharpest 35mm lens ever made, at the time) at f/2 until I put it on a tripod, shot some photos of a test target and realised it was my technique. Never had a problem since; the secret is to use the "split image" rather than the "coincidence" feature of the rangefinder.
Here's a big pot at 1/30 and f/2.
I have the original Elmarit 90/2.8 which is a remarkable lens, if a bit low-contrast by today's standards. It isn't a telephoto design so it has a looooong aluminium barrel.