Vinyl windows: Harvey vs Certainteed/MI

I'm currently comparing Harvey vinyl windows to Certainteed/MI vinyl windows. I live in CT. All of the windows currently in my home are Certainteed vinyl purchased back in 2000 and 2003 back before Certainteed hooked up with Metal Industries. Now we are adding onto our house and I'm looking for a good match, but also good quality. Does anyone know how today's Certainteed windows compare to their old ones? And which is the better quality and/or provides a better warranty today, Certainteed or Harvey? Thanks for any feedback!

Certainteed Windows Website http://certainteed.miwd.com/

Harvey Windows Website http://harveybp.com/category.aspx?type=windows

Now you can make your comparisons.

I don't have a ton of experience first hand with Harvey, but from what I've seen and heard, they are pretty decent. The MI/Certainteed otoh, is a lower end product. They offer a lot of options, but that is about the best thing I can say about them. Their performance and reputation leave much to be desired.