I am a real estate agent that frequently has listings or buyers that have inspections pointing out broken seals that cause moisture between the glass panes. I got online to try to get educated, but there seems to be a great debate. So, I called a few glass companies to get their take. The gentleman answering the phone was knowledgeable, honest and even had recommendation for me when I list a home which may be an option for a homeowner. I was so impressed that they are now officially in my contact list as a vendor that I will recommend to my clients.