Actually we haven't used these yet. But, I can say the locks appear sturdy, well made, and easy to use. The "opened" indicator is a great idea. I may actually use one of these on a carry-on bag because, in reality, I don't put anything of great value in my checked luggage. But I do put in the "personal item" or carry-on. So, to keep my goods from flowing down the aisle while Im asleep, I may use one on my bag. These Forge locks give Master Lock something to shoot for.