Wellcraft 48" x 48" Slider Egress Window

I am very happy with this window and it seems to be very well-designed. There are a few issues I'd like to point out. Number one is when installing the window we made a mistake of looking at the wrapping and installing the window with the words on the wrapping to distinguish the top. Luckily we figured out that was not the top and had to turn it where the lettering was reading sideways. We could not find any directions on how to install. Luckily the person helping me was an expert at installing windows. When he did get the window installed he pointed out the window was not perfectly plumb. From my perspective the window works absolutely flawlessly so I do not notice the difference. All in all The window seems to be good quality and slides very nicely. I am very glad I did not put a smaller egress window in my basement.