Glad to read about your progress though!
Thanks for your feedback yes it's really important to make sure that you drill the unit into a stud not into plaster because plaster doesn't hold much.
see more at
Of course, I've even heard horror stories of the screws coming out of the studs when TV's are too heavy, would hate for the wall to be destroyed in a brand new place.
Now that everything is done, would you use PD again despite the difficulties you have had with getting things fixed and the issue with stolen items?
I've found their communication is severely lacking which is especially important to me - I work in customer service so it's interesting being on the other side of the fence.