I've bought some really great bike off CL over the years. Some of this depends on where you live. My local CL is just awful with a few wannabe flippers trying the recycle the same junk over and over again. But if you are patient, you'll find a real person who is selling a bike and the prices tend to be reasonable in my experience. In the past year, I picked up two nice bikes for my daughter at very reasonable prices (a 1983 Trek 600 and a vintage specialized rockhopper).