Personal Anecdote: I am in the Boston area so YMMV - but I love CL. If you are serious about buying selling used stuff it is by far the best place to go. Competitors (FB marketplace, Letgo) have a much lower quality of listings and a much less educated user base on how to prepare, negotiate and make sales. I am not saying CL is not full of spam and junk, but its very easy to spot serious sellers and people who have no idea what they are doing. Over the last 3 years I have probably made 50+ buys/sales on CL and it is still by far my favorite platform.