I like the game, but I'm very uncertain on that price point. As mentioned in the forum I would prefer to see something done with the cards (card building meta, unlocking new cards etc) and also hero progression (acquire new skills, etc).
I have found that as the Kingdom, if you rush to get Cannons you can pretty much hammer everything. A load of cannons and some guards and you are laughing.
It IS fun, but very costly against games such XCOM etc.