I really like this app because it has a simple format and is pretty user friendly. My only suggestion/desire at this point is having the ability to see what your balance is after each item is added. In a normal check register you would subtract/add your amount and write your new balance afterwards. Not having this feature makes it hard to look back and see when the last time my check book matched up to my account.
Eyembizzy about Checkbook - Ledger