Just how good were the Rollei 35's with the Tessar lens. I have one given to me to sell and am wondering if it would be worth keeping as a walking around camera. I also have a Leica Minilux and an Olympus Stylus too choose from if I wish. Normally I would shoot 1/2 a roll and test it out but to tell the truth I'm just too busy with other cameras, updating my website and general life to go too much out of my way right now unless it's worth testing. So I'm looking for some input before I go to the trouble. P.S. It has sticky low speeds. What's a cla on these things?