Just received and used last weekend. It seems to be working fine, we'll see over time. But at the moment it's kind of easy to apply but you have to clean it when it gets dirty in some places, I used my finger and a paper towel and it was easy to wash with my hands. While I'm not a pro at it, I love it nice and clean, it's not hard to do. Also, I prep the area before using alcohol which seems to work. I let it dry for about 0.5 hours. Will be updated if problems arise.