I have had some success
But not what I'd call great success
I no longer run them
For the most part, the people cruising CL are looking for soul-crushingly stupid-price deals
Thankfully, many you can tell right off the bat, as they'll spell it out for you
"Looking for someone to paint my 6000 sq. ft. cottage on the bay, I'm short cash so need it done cheap.... so can pay you by letting you stay there a week...while you paint it...if neither I nor my extended family or friends want to stay there that week"
or
"Great Money!!!...Will pay $12 hour"
Some you won't realize they are looking to poon you 'till way into it
I suppose I had some success with it because there's an enormous amount of potential customers in my area that don't live here (I'm in a coastal beachy summer tourist area...totally)
They live inland, in the city, and some use the web as a resource to find services for their cottage/summer/retirement home while they are at work or home at night
So along with the ridiculous cheapos, there was some real people with no other good way (that they knew) to find what they were looking for
Those were few and far between, but I can't say I didn't have any success with it
However, I don't do them anymore...there weren't that many great leads for me
Maybe a more "economy" type company would have greater success with that type of advertising (paint any room for. $XXX.., or beat any price....type deal)