I have had both, there is a very slight difference. You notice it for about 30 seconds or less.

Also, the double pane glass has a downside. It is actually 2 panes of glass bonded together. The seal deteriorates and the glass gets cloudy due to moisture,

 

I feel like that's wat most people say. but like the guy that replied above you. he notices a difference. some say its slight some says its huge. i just don't want to get the wrong trim if its a big diff lol