OK so I was able to amass 3 more stars since my last post. With my hero at 1 star and 88% chance at success. I got another SCREW you from the game. It gets really frustrating when players on my server with less power and levels are walking around with 7 stars on heroes.

I really think the Devs need to look at the point of not losing what stars you already have on the hero when the upgrade fails. Yes I would say what they are doing with that is basically stealing people's money. That is one BIG reason why I will not pay any money for this game.