Just got it a couple of days ago and don't really know the results yet. I got 375 sp for 10 STEEM for 4 weeks. They give you 150 for 4 weeks for 4 steem now. So far - my 100% vote is 6 cents compared to 1 cent before. This makes a huge difference.
Run! Do it now. Seriously. I'm going to write a post about it. All of us should be LEASING not buying steem in the beginning up to at least a couple thousand sp.
Then if you upvote effectively, I think the bang for the buck will be substantial for us little guys. The bigger you get - it's not worth it as much. So at some point your start buying instead of leasing bit by bit. I will definitely post more on this.
Good luck to both of us :)