When I first heard of the system, I figured it was innovative and liked the idea of encouraging horizontal growth to allow others to catch up - but the fact is that, while in theory it was interesting, in practice it's terrible. I like having a goal and sticking to it. I don't like my goals being side-railed and my momentum deferred. The flow of the game is destroyed by it and my enjoyment is limited by a lot. I'd rather deal with grind-happy players flying by me than have my own efforts hindered.