I had two at different times. Great little camera, with a distinctive, soft clop shutter sound. I have used both the Summicron-C 40 and M-Rokkor 40 - both are great lenses. The Rokkor 90 is good, too.
Ultimately I sold them both because I like 50mm and while the CL has 50mm frame lines, they were too close to the 40mm lines for me. 90mm lines were also too small (I'm used to the M3.) I used to stick a 35mm lens on it and use the whole viewfinder, which worked well. Also the camera is black, and I was paranoid about scratches and paint coming off (a personal thing.)
A great camera, though.