The fun stops after level 2.. Dont do it

So basically to be short and not so sweet.. If you download this game, you will end up spending $$ to buy gems (maybe coins) and "buy" the next level. Im at level 3 and it already takes 40 gems and 10,000 coins to buy level 4!.. And to what I read it gets much worse. Umm sorry Im not wasting my money. U cant save gems (coins) by watching trailers enough for that, itll take months! Also It takes HOURS just to replenish hearts to play. Finally, once u complete a node, all the coins u got is gone just to update monster to play the next one. You can NEVER save coins. Thats all to me. This was very disappointing. I really enjoyed this game A LOT but this is ridiculous. Theres gotta be something to fix it or Im deleting this app...

IDontDoNicknamesToo about Dragon Land