SURVIVOR/Reliabit 5600 series

[jrat]

ANYONE KNOW ABOUT THE SURVIVOR 5600 windows?

I am having a window contractor install them.

7/8" Guardian Performance Plus(tm) Low 'E' Insulated Glass

Argon-Gas-filled

Insulating Foam in Fram Perimeter

All he does is window installs with the same crew on each job.

I know theses are also sold as reliabilt at lowes.

Any opinions would be welcome.