I subscribe to inkfrog.  It is similar to Auctiva (trialled that too) - but IMO is simpler to use.  The time it saves me in preparing and listing is invaluable. It certainly saves me the 15 bucks I pay for my subscription a month over and over.  Inkfrog, like Auctiva, has glitchy moments and days too, but that is no different than lising from ebay or via turbo lister (lol).

IMO no internet platform is going to run smoothly all the time, and like eBay they will all experience glitches.