I have a pair of BIC RTR-1530 speakers in my basement. They are maybe 5 or so years old. They pretty much sound the same to me as Cerwin Vega's.
That said, my hearing is pretty average, I don't have the ability to notice a lot of the nuances that some audiophile types can.
I'd rate the ones I have the following ...
7/10 for overall sound quality (With KLH speakers being 1/10, cheap paper drivers being 2/10 and stuff like Bose being 3 or 4 out of 10.)
10/10 for sound quality on the dollar
9/10 for minimal loss of sound quality at loud volumes
10/10 for durabillity
1/10 for their portability and compact size (the ones I have weigh 90 pounds and stand taller than a large midget)
I can't speak for whatever model speakers are in the craigslist add, since I don't have access to that site from here, but I like my BIC speakers, and I would buy them again in a heartbeat.