We've been using Western aluminum forms for close to a year now. We've been in business 24 years. We used to use wood forms but switched because a lot of contractors wanted aluminum forms because of the wall quality. Aluminum forms are also more durable than wood. Wood forms only last for a while before they open up on the corners.
Concrete spills out and it's harder to make a perfect looking wall.
Aluminum forms are easier and faster to set and they make a better-looking wall. Really smart people look at the walls formed in aluminum, and they like it, want it, and are willing to pay for it.