I put this on my shed so I don't have to get my keys every time I need something from it.  It was very easy to install and I only had daylight during the process.  It locks a couple of minutes after it is closed which I prefer.  You can use a 4 to 8 digit code that you assign yourself.  Realize it is not a smart lock and can't be controlled from a smart phone.  I would highly recommend.