I've used Turbo Lister for all of my auctions and it gets the job done! There are some quirks with the description area scrolling window (window won't scroll with keyboard, only mouse), but it is very effective at producing quality listings.
All of the eBay services are integrated into the product and I've yet to have any errors caused by the application.
I would recommend this product to all new eBay sellers as it is free, but you'll have to learn to navigate through the many windows in order to make sure that your listing is complete. It would be a great improvement to include a listing creation wizard to minimize the possibility of forgetting something.
If you want to use this product, you would be best to create a checklist for yourself to make sure that you don't forget any parts of a complete listing.