First off the game looks nice and you can see the developers have spent time creating a very good looking game but that's no excuse to be greedy. The pay to win in this is through the roof. I got as far a lvl 72 and uninstalled, without any boosts you'll find it very hard to progress and for £4.49 for 50 gems then 19 of them to get 3 boosts, you'll be burning through money like its goong out offashion. The devs need to look at Egg inc and see how they handle in app purchases.