Their expertise seems to be limited to their glass. The three cranks on my three windows were hardly used and had to be replaced.
The metals are very weak for the weight of the window. They also have a plastic roller which shears off. Cranks broke down in multiple areas. The cranks on my Anderson window are about a thousand times better - and I consider Anderson crank windows mediocre but very usable.
The crank kit is about $65. multiple times three. The new cranks are just as flimsy as the old. Dealer agreed completely.
He said he sells window crank kits for his unit monthly.
Monetary Loss: $195.