Thermolite windows

[nancygrady]

Does anyone have any information/experience with thermolite windows...a division of Atruim. I live in the northeast and am replacing a 32 year old picture window. This company manufactures as well as installs...seems to have a good u and r factor...but has priced a 5 panel, bow at $4400. Seems high to me...even installed with a liofetime warantee.