I am not a fan of anything Plygems personally. But I would suggest asking on the window forum there are guys there with more vinyl window knowledge than I.

We just installed them. They seem fine. I have read all of the bad reviews. These were selected by our builder. He has used them in several houses without any difficulty or call backs over the past few years.

On certain lines, they have limited exterior colors- white or beige. Specify how energy efficient you would like to go with the glass. Wish we had upgraded to argon gas for slightly better U factor.

See attached window efficiency ratings.

Here is a link that might be useful: Plygem windows

Ply Gem, like most window manufactures, makes many kinds of windows in different levels of quality so it is difficult to find good specific information on the internet. These windows have been discussed on the GW many times. Try the search link below.

Here is a link that might be useful: forum search for Ply Gem