GOOD WINDOW YEAH OR NAY??

[mrdcse]

I am looking to install 11 double hung windows in phila. a local company has a product I like. Are this ratings any good, they come from the nfrc web site.
manufacturer product code solarban 60/arg/clr-ds-foam filled frame
vinylw/foam filled insulation, vinyl w/reinforcement interlock
u fac 0.27
shgc 0.29
vt 0.53
condensation resistance 61
glazing layers 2
gap widths 0.517
sashlite technology
argon fill no grids
lifetime warranty on everything all thoughts and comments welcome
the company is northeast building products, crusader line

[explortainment]

Where do you live? I just bought 4 windows from Builders Prime in Bridgeport. They are really nice. Here is the product brochure:

http://www.miwd.com/library/files//1650%20regent.pdf