Bought this as a gift for my 17 year old son who collects coins. A few months back I heard him mention wanting a safe. So when Christmas morning came, he was surprised I remembered. 
He loved the safe and we originally thought this was the correct size for his needs. Turns out, he could have benefited from a safe that was a little larger. However, the safe itself, the locking mechanism, settings the code were all fairly simple. He was overall very happy with the safe.