I'm an experienced DIYer. The instructions aren't the clearest. There is nothing that tells you how much room you need above the top bracket [hint: it's about 3.5" from the inside of the top bracket, upwards]. Nearly all of the videos are useless. We had put the front bar on backwards, but that was easy [enough] to turn around. The shade assembly was off-center on the main support, which made it difficult to put the mounting brackets properly on the ends [again, easily fixed but not addressed in the instructions]. The "blockers" [part 'P'] aren't clear. How do they work? What is their purpose? They sit in the middle of the front bar. They're not in any video, and aren't referenced again in the instructions.
We have ordered hanging/ceiling brackets. Will update when we see how well it operates.