I had the great pleasure of installing a prehung steel entry door for my BIL today a part of a kitchen gut they are doing. Couldn't believe the experience. I used to make doors mostly, at my last job, am making a large set of very complicated entries presently at new job. How the heck hard is it to set the door at the right height in the jamb? Its done with a freaking CNC machine at the factory no? I'm an idiot with a plunge router and a $.50 MDF template, mine come out pretty darn good, nearly perfect on the best day. I had to rebuild the rough sill completely, so I took the time to get it level, set the door, carefully plumbed and leveled it, secured hinge side, the lock side, making sure everything was straight as I went, no bows, even gaps.......the threshold weather seal pushes so hard on the adjustable sill you can barely close the door. The sill is adjusted all the way down. They simply set the hinge locations on the door too high, so the door sits too low for tolerances. I had to walk away days end with a barely functional door in place, no time to fix it today. I will fix it, dowel the screw holes, lower the hinges on the door 1/8" (top gap between door and jamb head was nearly 1/4", tells me door sits too low), make it work. But why should I have to? I remember following a thread recently where the OP was describing the same symptoms with a new door he had installed, carpenter told him they all do this? No dice. I'm going to email the company and tell them what I think of their product in some very direct terms. What do you want for $250? I want a door that opens and closes personally. End rant.