It is interesting that while the window's U value and screen strength are reviewed, there is no mention as to how these window panels (sashes) tilt out for cleaning. We have 25 year old vinyl Patriot windows (manufactured by a now-defunct company n New Jersey). After about 10 years of life, these windows became warped and would not close tight. Also, when they were tilted out for cleaning, the window panels would fall out - the pins in the window panes (sashes) would fall out of their holders in the channels and it would be very difficult to align the 36" wide window panel (sash) to get the pins back into their holders. We finally decided to replace the Patriot windows. A local contractor offered the Mercury Excelum windows. We went to the contractor's showroom to look at the Mercury Excelum window and when we tilted out the lower window panel, it fell out just like our old Patriot window panels. This means, that Mercury Excelum still uses the same pin/holder technology that Patriot used 25 years ago. We could not align the pins on the window panel with the holders in the channels (the holders must be rotated "just right" to accept the pins), so we could not reinstall the window panel back into the frame. Then we tried the upper window panel, and it also fell out - once again, we could not reinstall it back into the frame. By the way, the window in the showroom was only about 20" wide - imagine trying to wrestle with a 36" wide window, trying to place the pins into their holders. Based on our futile efoorts, we decided to look at windows from other manufacturers which would have a better design for the pin/holder interface.
A couple more thoughts on Danny's "review". This video is more of a product "unpacking" video (although, of course, nothing is being unpacked here) rather than a real "review". Also, notice how easily Danny pulled out the lower window panel. Yes, these panels do come out easily. Now if Danny continued his video and showed himself reinstalling this window panel back into position, his "review" would increase from 5:30 run time to about 30:00. So he tossed the window panel off to the side, never bothered reinstalling it and gave it a big thumbs up - very clever!