I have read a couple of posts here that indicate the Soft Lite Envison product is their entry grade window. The sales guy, however, told me that this isn�t true and that the only difference between the Envision and LS is the frame finish. The LS is a little better because of the finish that allows it to be painted and allows for interior wood grain look frames. Where the Envisions will only allow for the white and beige exterior and interior looks. I checked the numbers and:

Envision
Air .06
U factor .22
Structural 153 mph

LS
Air .02
U factor .16
Structural 187

So the LS is a better window � BUT the numbers on the Envision seem pretty good too. Are there any thoughts on this?

The only thing I am finding is that the dealer tries to avoid giving you a discount for the slightly less performing Envision and seems to want to quote them at the same price as the LS. I think I can push them on this though and end up with a pretty good window and a pretty good price, that would suit my needs adequately.