We sell their windows with very good luck. I even put them in my own home when I remodeled. We only use their new construction windows. They have a full nailing fin which creates a water tight seal with the vycor tape, and their double hungs can come with integrated J channel around them. Quick install, water tight, decent window for replacements, a good warranty, and they look very nice. The vinyl welds on the miters are a little rough on some, but still a really good window for the price range.