I've used Craigs a few times- but recently find myself on FB sale pages too! Its nice because everyone in the group has to know somebody that you know somehow- and they have their own FB page so it's not like a made up email addy/scam.
In my county theres a few buy/sell/trade baby items ones... so its nice to get baby stuff used and in great condition and to not have to travel!!!!
I bought a swing, well two swings, and clothes and stuff from the FB pages.
I search craigs everyday for furniture. I really want a crib and a big changingtable/dresser from there, I cant seem to find any in stores I want and NEW dressers are soooo expensive!! Found some really great ones for like 250 or less that i'd pay over 500 for in stores... So I search everyday for the right one!!
I dont think I'd buy used stuff that cant be washed either- just depends I guess on who it was/what it was..
If I end up buying a crib on craigs I think I'll just buy a new mattress!
Often I meet people at a local Starbucks or somewhere public if what I am buying is small. I know this sounds crazy, but there is a lady from Etsy who sells some of her stuff on Craigslist and at a local store, and I recognized her work on Craigslist. It wasn't scary going to her house, because I feel like I knew her from three places - though never met in person. Since I am due with twins in January we need all the help we can get. I am pickier this time of what I get on CL than last time though - looking for top notch stuff that has been gently used.