Its a no brainer for me....
When you begin using it, i suggest that when you are choosing an alternative word, make sure you add them to your favourites, it took me about 30 articles to realise that i hadnt saved anything, and it pissed me off.
With regards to ezine articles, what i would do is just write one article, send that to ezine first, whilst your waiting to get it accepted spin the fuck out it, after its been accepted then submit your spins to the other ones. I got one accepted on go articles within a day, and to be honest i didnt think it was that good, but hey, who gives a tiny rats ass??
I personally believe this is the best way to use it. Im just starting out in autoblogging, and this is a valuable asset for me. Best spinner, best tool ive bought in a long time.
I would add, watch the vids, cos im the type of person to jump straight in and buy something and learn by trial and error. Save yourself some time and watch the vids, although you could work it without watching them, as others have said, there are a lot more functionalities that can be used.
Peace