I love worlds that Hiyao animates, like Porco Rosso, Castle in the Sky, Nausicaa, and Howl's Moving Castle. Guns of Icarus is pretty much the only game that puts me in that romantic world. That's my main reason for playing Guns of Icarus.
I've named two of my ships in reference to Hiyao's works. It might soon become three.
What makes you like Guns of Icarus?