A quick summary of steemfollower is that it is a system that incentivizes steemfollower users to vote for each other. It is kind of like how friends have social incentive to vote for each other except steemfollower uses a points system.
The system is very easy to use as you just go to steemfollower.com (or https://steemfollower.com/?r=9230 if you want to give me credit for referring you), and then you can click to login which takes you to steemconnect.com (check to make sure you are on steemconnect.com), and decide of you want to give steemfollower.com some permissions. Once you are logged in, you can click on "Services > Manual Curation" and start looking for posts you want to vote on.
The selection of posts to vote on seems about as good or better than what I typically see when just browsing around on steemit. I voted on some posts tonight, and then wrote this post, and I'll see what happens. With steemfollower you aren't guaranteed to get votes, so there is a chance I won't get any upvotes for this quick summary of day 1 of testing out steemfollower; however, I'm already looking forward to day 2.
Edit to add: Click here for day 2.