Apocalypse Hotel. Wow. Sleeper of the season. Crunchyroll should be ashamed they did nothing to promote it.
This is what I'd call the sleeper anime of the season. I found it by accident and watched the first episode mainly because of the title. Ever seen "Planetarium"? Same vibe. Except Earth is 100% devoid of animal life. Just plants and robots, and gradually, aliens. The owner of the Gingaro Hotel left his robot staff with one basic set of commands, basically a 10 commandments of hotel hospitality. This is a heart-string tugging, laugh out loud, yell at the screen series. If you've ever lost someone dear to you, you'll be crying at a couple of episodes because they handle it perfectly. But you'll also laugh during the same episodes - they're that clever.
100% do not miss this series. The animation is fantastic, the voice acting (I watch the sub) spot-on, the plots and storytelling top-notch. One episode they go all-out Kill La Kill and it's hilarious. Another one is basically entirely culture shock inspired poop jokes - sounds bad, but again, not the way they doo-doo it.
It's one of the few anime this season I really look forward to seeing. Each episode is a continuation of the previous one, but still stands alone. There's only a few epic-battles, but even the world-destroying critters are cute. The Gingaro staff will make you laugh and cry and make the time fly by.
It's a series where you'll want another season - but you don't need it. They wrapped it up so well with the ideal blend of angst and humor, and answered all the unanswered questions. And shower hats. It always comes down to shower hats. The final few seconds? Laugh-out-loud.