Pretty slick. Don't remember seeing anyone mention that they've used them. Even though we like BroncoDesign stuff, I don't remember seeing much talk about it.
Is it a relatively new part?
Even if not, it's a somewhat low-volume need part too I would think. Most people are still going to be using their stock door frame.
I like it though. Serves a good purpose for those that need it. Way to get those removable uppers we always lusted after from the earlier models.
Hopefully someone here has them and will chime in.
Paul