You may not get quite the same price you could through ebay, but you don't have any fees so I'm pretty sure I cam out ahead. That and transactions were completed in person for cash. When one of my items (WiMAX router) didn't work correctly for the new buyer I offered to go round and help and give a full refund if I couldn't get it working (it started working thankfully).

The weird thing about gumtree was the rapidity of response - I put a microwave oven on there a midnight on a Saturday night, and got three email responses within 15 minutes. They didn't follow up the next day, leading me to think perhaps they were drunk or stoned prospective microwave owners, but it still sold within 12 hours.

Perhaps I was too cheap, but it was an 'everything-must-go' emigration situation.