I carry a GS as my "truck camera" and basically if you can shoot without a flash the range finder is just fine. If you are trying to shoot inside, I was taking pictures at a graduation recently and it was a bit hard to see but I've never had a problem. The GS is my favorite carry camera, you really can't go wrong with one at the price you can find them for, I paid $2 plus $7 for one that looks like it just came out of the box.
looking for the battery cover for a early model Canonet QL 17, the round screw in kind.
I have a GT and the rf/vf is brighter than a FED and Zorki, dimmer than a Kiev and about the same as my recently cleaned Canonet. I'm hoping to have a Leica or Zeiss Ikon to compare it to very soon. =D