Had a nice experience with mobile service (my first). Tech came out and looked, confirmed the seal was not installed right and needed to be replaced. I expected to hear "well, we have to order it and it will take X weeks" but instead he said "I have a new seal with me here, and I can do it right now." 20 minutes later, it was done. This is what the seal looked like. It was also warped at the top corners.