Thanks for this review, it's always good to learn about new voting tools.  But for now I think I'll stick with the Steem Voter service instead of AutoSteem, even though AutoSteem looks a bit more feature rich.  Only voting when I have my computer on is a major turn off for me.  With Steem Voter I know the bot will be curating for me 24 hours a day so I'll never fail to vote on my favorite authors.  I'm not so concerned about my posting key; the advantages of round-the-clock voting outweigh the increased security risk of having it stored on a server outside my control.