I am ebay member since very many years and have basically only good experiences as well. Of course, you must be careful what to bid or buy. In regards to listing, it is very easy now..., there has been an intermediate period where it was very complicated but these issues have been resolved.
I've been an eBay member since May 1998, and have had pretty much all positive experiences.
The listing process is a lot simpler and faster than it used to be.
As a seller, I have encountered a few very strange buyers along the way, but not enough to ruin the experience. As a buyer, I only bid on stamps from areas I am fairly "expert" at, so I can detect reperfs, mis-described and so forth without having to actually see the stamp.
Hi KGV My positive experience on ebay is selling in February 2012 to 54 happy customers around the world. And it looks like it maybe even better this month with returning customers. I remember you replied to a post of mine "How To Make Money Selling Stamps" about a month ago. Anyway wanted to let you know I am really into the ebay selling now. Ebay.com is best, oh and I blocked India as I don't want any bad experiences.