Minnowbooster is a lifesaver for many newbies here at steemit. I tried using other voting bots and I found this one as the most reliable one. It also sends back SBD/STEEM if they notice that you will be losing SBD/STEEM when they upvote. When Newbies ask me what upvoting bot is the best this is the one. It may not be the highest upvoting bot but it definitely the most legit.