Sometimes I buy something on impulse, take it shooting and can tell right away if I like it or not. If I don't like it, fit or feel or for whatever reason, I just stop shooting it and sell it. No sense putting lots of rounds down the pipe if it's not for you.
I've got a buddy who regularly orders a gun, recieves it, shoots it once and sells it. I've seen him do it many times, and many times I've purchased said gun from him for a good deal
I think most on here are very good at disclosing problems with a gun, I've never regretted a purchase on the EE, and I find most items are better than described, maybe I'm just lucky, but everyone I've dealt with are stand-up folks. Ask lots of questions, and look at lot's of pic's, do your homework and there are really good deals to be had...on the other hand, there are lots that are way overpriced as well...
Just my 2 cents...Mike