Home depot came over to show me some replacement windows. I thought - OK but my house must be pretty tight. The man demonstrated the "heat lamp" thought my old windows - about 20 years + - and his windows. SOLD ME. I guess if I have one regret it was that I did not comparison shop - bought the first ones that came out. I never have regreted this LARGE purchase as I have 28 windows. The full screens - with the windows opening from top or bottom - are great. There is also the built in "Thinie do not know what it is called - that can be pulled out stopping the windows from being forced open further when your windows are open for summer. Would give them a 1 - 10 I would have toa give them a 15. I also havea guaranteed for life on breakage of the windows, and screens. I already had a dog put his paw into the screen and snag it ... they replaced without any questions. Great company and EXCELLENT product.
Round Rock, TX