This game is great, the controls are a little frustrating, but you get used to them. It isnt a very hard game, as long as you upgrade your suit, health booster, etc. I didnt have to spend a penny once I bought it either, unlike the Arkham Origins mobile game, where you have to pay to be able to play if you want to beat any bosses. I know its very different from the console version, but its great for mobile, highly recommended.
Also, I want to point out that Mortal Kombat character you can fight if you play a bonus level, for those that are interested.
Madtvn about Batman Arkham City Lockdown