It does a good job, but the adhesive tape it has underneath is not so good and I had to change it

Either I didn't manage to use it correctly or it doesn't work :P
If it had slightly better instructions, it might deserve a better rating.

Very easy to install. I put them around the aluminum windows I have because no matter how much the frames were adjusted, after a few months I could feel the cold air coming in. These saved me! And they also provide sound insulation