Hey FoderBoder.....yes, I've used 54" curve from Menards. The track is pretty good but as others have mentioned above there was (are?) issues with the center rail shorting out because of holes punched through the paper insulator (I don't think its fiber). I even contacted Menards and told them about the issue I encountered. They said they would check into it and monitor the quality control.
As a result I would remove the center rail and install my own cardboard insulators before putting the track into service.
You should also know the track joints don't seat as tightly together as Lionel track does. But the rails are galvanized and won't rust.
Hope this helps!
