I would suggest getting the token and do a sample listing on Auctiva to see for yourself. I would NEVER ever go back to listing diectly through ebay.
I have heard store listings can go poof for awhile, but I've never had a store, and even when I was new I could see my listings right away. Of course that was a long time ago and ebay has changed alot since then, mainly for the worse...just try one or two & see how you like it.