Like many items, this was needed for a very specific scenario. This works well for my door and what we use it for. It is installed on a front door to a residence and it is positioned about 5ft off the ground at chest/head level. This door guardian's purpose is to keep toddlers from opening the front door and walking outside without permission. I think this would also work well for security to keep people from entering into the home... when you "lock" the guardian into place it is extremely secure and would require force enough to splinter wood and break the actual door-frame in order to get it removed forcefully. The way the guardian is designed actually makes the lock stronger when the door is shut, because the mounting bracket is placed between the door and the door-frame.Installation was pretty easy. I chose to use 1 different screw than the "pilot" one they gave me simply to have a different screw-head. I played with the configuration briefly, figured out how it installs, and tried to determine the ideal position for our uses. As I mentioned, out of reach of toddlers - so about 5ft high just for convenience and so we didn't look like paranoid people by having 3 locks all stacked on top of eachother (doorknob, deadbolt, door guardian). With it positioned UP on the door-frame a little more, this looks neat, professional, and out of the way.We probably will not use this product very often, only in safeguarding scenarios for toddlers when we know they can't be constantly monitored. But, it is very nice to have this convenient, small, and out of the way product attached to my door now so it is there when we need it.TLDR:Toddler is tall enough to open front door. Placed this 5ft up and can now use this as a safeguard to prevent unauthorized exits.