We built a new house in 2010 and have many Marvin windows and doors. Some internal pine units are now rotting, customer service is abysmal, Marvin have made a paltry monetary offer even though they are covered by warranty.
This is extremely disappointing. Do not buy, they look great when installed but if you have a problem, they tell you tough luck.
Review about: Marvin Windows And Doors Window.
Reason of review: Warranty issue.