Almost all software can't deliver high quality. You should control process of spinning. I use article spinner, I's quite good tool for me.
Obviously human article spinning is the way to go, but I've had some success using the best spinner. Once you get used to it you should see some pretty decent results.
it depends on your purpose of spinning. If you spin articles to submit to articles directories (may have human review), you need something like the best spinner. If you spin articles to build backlinks, you don't need to spend hours on your spun articles. In fact, an article which can generate quick, LSI keywords rich spun articles is preferable. In this case, I recommnend one click article spinner. It's fairly new and you can see it here: http://oneclickarticlespinner.com
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