I used this for my new shed to get rid of the need to keep track of a key. It’s a solid lock and well made. The installation was okay. Not the best design to make the install easy, but easily doable after some thought. The instructions for programming the lock are poorly written and confusing. Customer support was quick to respond but they didn’t offer any technical help directly, they only would respond by email, which was kind of worthless. I’d buy this again though. At half the price of other similar locks, you can’t go wrong with this. I can’t speak to the longevity since I’ve only used it for a month, but with the solid construction I’m not worried.