I think Rabbi Traube commented fairly when he wrote that even if you advertise all the hiddurim in the world, you loose something once you are a mass producing in a factory / line up situation. It's like that with everything in Sta'm.
I'm not saying these are not good batim. But to me, any of these hiddurim can be obtained at many reputable factories, and still be much cheaper than private batim machers.
The exception are their no folds policy which is a good safety measure (I wouldn't call it a hiddur, rather a safety measure), but you can always choose such batim from regular "factories" before they are painted and it will be cheaper. (By this I mean batim which are free of "potentially" problematic folds)
Their hechsher from the eidah is a good thing.
Someone correct me if I am but other reputable factory type companies I deal with seem to advertise many of the same hiddurim for their higher end batim as well.