I use it myself both giving and receiving.
Recently my wife said that someone had an old Voigtlander camera on freecycle and was I interested (I've got a small collection of old cameras)? Yes I said and arriving home that evening was an absolute mint camera still in it's box , never used and still with the original reciept for £54 8 6d from 1963. Checking a site that converts to present day values gives a value of around £750! Not that I'm going to sell it , when I get the time I'll run a film through it.
When my parents died earlier this year we put several things on freecycle and answered a few wanted posts as well , but , some things weren't taken so my wife put them on e-bay instead and they attracted several bids and sold. Nowt as strange as folk.
Want to talk about how to keep stuff out of landfill? Here is your place to do it.