Back in around 2003 the old cabin had Pinecraft (Scherer Bros. Lumber private label) windows that some frames and pretty much all the sash were rotting. Walls also. For me Pella ( I can’t remember the line) made sense since the options for STOCK rough openings were such that I was able to not have any ROs that were more than an inch or so than the stock units. I did cut out some framed sills to use a taller stock unit. I do all my own carpentry as a UBC member.
We tore the old place down in June of 2018. I let a local guy tear out the Pellas and he used them making a 3 season porch. I used Marvin Integrity in the new place and I am very happy with that decision.