I felt the Forge Bowl was slightly less rewarding than last years. The introduction of spending diamonds I suspect was the primary reason to drive us to purchase more to enable a better result (and bottom line for Inno). Previously I could get at least one full upgrade to the building of choice, but this year I couldn't even get it on one of my worlds above 9th. Liked the option to spend diamonds on coaches, but felt progress was held back on purpose (Maybe I placed worse across tracking board because everyone else did use Diamonds?). No - I didn't spend any diamonds either since I don't get a lot of them.