Got to the third chapter before I was locked out from playing due to "lack of energy". Was pretty fun before that. They kept trying to push on my pay 2 win deals that would increase my heroes' power and status, but I avoided that kind of reward. When they DID reward you for something you accomplished ingame, it actually felt great! Like getting to silver league in the Arena. The mail dragon comes by and gives you 150,000 gold. I was struggling to get gold at that point and the game rewarded me for something I had done. It gave me a sense of pride and accomplishment.
It had me playing for a good 3-4 hours before it became unplayable without paying. As a free player, I rate this game 2/5, just because even though the single player campaign was fine, the PvP arena felt so P2W that I had to take a star off the rating.
I love this game so much! Since they don't have any achievements, I'm going to be stuck at level 5 forever! Darn you addictive 3D platforming awesome game!