Wow, there's a lot of enthusiasm on display about the Netflix app.
I haven't had an issue with the design. It could be better, but it's constantly evolving, so, meh. On my aTV4 the "recently watched" item order got all jumbled up, which was sort of weird.
Regarding competing services: I have Prime but am nothing but frustrated by their streaming service. Their ultimate purpose is not to provide you with content to watch which you've already paid for, but rather to drive you towards purchasing more video. The free content is consistently "seasons 1, 3, 4, and 7 are available; 2, 5, 6, and 8 you have to pay for." Infuriating. No thanks. In fact, I typically forget I even have it as an option.
Hulu Plus is at least equal to Netflix. We're cord cutters who rely on Hulu, Netflix, and HBO Now for TV entertainment. Hulu with the "no commercials" upgrade is golden, and they're really catching up (and in some ways, have surpassed) Netflix's selection of programming.
Netflix owns original content, though. Their original stuff is fantastic. Those two services together are very complimentary.