I was nervous about installation becuase I'm a very small woman with few tools but it was super easy! I watched a helpful youtube video on it so I could get a visual aid. Took 30 minutes tops and looks great! It has been raining all week so this has been a good time to test it. No water has gotten in except on the back by the back window. The straps that hold the rolled up cover go between the truck and the foam seal which creates two spots for water to come in. The straps get wet and the water just comes through them. It is very little water though. I will definitely feel safe about putting luggage and camping equipment under there and not worry about rain. Just be prepared for a little water. It won't be bone dry if that's what you're looking for. For me, it's perfect!