I am in the Northeast Texas area and looking at either NT Executive series or comparable Don Young windows. My limited research abilities lead me to believe that the two brands are similar in quality and on a 1-10 scale (with Pella Thermastar being about a 2), about a 6. But that is about all I can find.
In the opinion of those who have experience with both, how do they stack up quality-wise against each other and against the low-end Thermastars?
Thanks!

EDIT: I should add that one installer has tried the hard-sell (really hard) on Don Young but didn't know anything about NT, which I found odd. I found out about NT only from research on this and one other forum.
Also, since I am in a very rural area, my choices of installers is limited to a couple of local men & people that are willing to drive 50-ish miles out of Tyler, Longview, or Greenville. I haven't found anyone out of Dallas willing to come this far (100 miles) except for one company (Window Kingdom) who has an installer working out of Tyler so I would accept recommendations for installers also.