All i'm watching this season is GATE, Hai to Gensou no Grimgar, and Kono Subarashii Sekai ni Shukufuku wo. They're all okay.
Hai to Gensou no Grimgar is pretty good so far in my book. At first I thought it was gonna just be another "RPG-styled" show modeled after SAO or something to that effect, but I've been pleasantly surprised. It almost feels like a non-traditional slice of life, in some ways. On top of that, I find the pacing to be comfortable and the characters are developing at a more reasonable pace/more realistically than in many other anime. This is all my opinion, of course, but I'd still say this is a decent show. As for the story, I can't comment too much on it, as I'm still only 3 episodes in, but I can certainly say it isn't as developed or deep as with Erased or similar shows.