Let me start by saying, if you're dealing with a drafty door and don't want to break the bank on a full replacement, this weather stripping is a game-changer. I installed it on my 10-year-old front door that was letting in cold air like a sieve, and the difference was noticeable immediately.

The installation was stupidly easy – no glue, no mess. Just cut to size (the 20ft length covered two doors for me) and press the plastic flange into the groove. It took me about 15 minutes per door while drinking my morning coffee. The polyurethane material feels durable, and after three months, it hasn't deformed or loosened.

Now for the real test: during a recent windstorm, I literally put my hand where I used to feel drafts... nothing! The foam creates such a tight seal that my heating bill dropped by about 12% last month. Bonus – it actually reduces outside noise more than I expected. My neighbor's yappy dog? Muffled.

A few heads-ups though: Like one reviewer mentioned, mine arrived slightly crimped from packaging. It took about 2 hours to fully expand (I laid it in sunlight to speed things up). Also, while it works great on standard doors, if your door frame has unusual grooves or very wide gaps, measure carefully before buying.

For under $20? This is one of those rare products that actually delivers what it promises. It's not a permanent fix for badly damaged doors (you'll still need replacements eventually), but as a seasonal solution or temporary measure? Absolute gold.