The ability to store multiple keys for each lock, easily monitor who has access when someone is away from their desk or not in an office. Easy way of storing different types of key (card/RFID). It's very easy to use once you get used to it! Nothing that I dislike at this point but maybe more options could be added as well? We've been using safesites since we started our business many years ago now so there isn't much change needed with regards to functionality. Keeping all corporate cards and other important documents safe by locking them up safely while still being able to access if required without having to bring everything back into your own offices every time.