The great advantage over using Ebay is the fees, Etsy is significantly cheaper to sell on at 3.5% compared to Ebay's 11% in glass and 15% in antiques. I imagine their sales volumes are lower but at least you stand a chance of making a reasonable profit on what you do actually sell.
As a newbie there I have noticed it is not as intuitive to use as Ebay but so far so good...
Ebay have become very greedy in recent years with fees going up and up. The imposition of a 10% fee on the cost of postage is absurd, 70% of my sales were to Europe and America and that postage fee was a killer.