Ok, I've had time to check out a few more of the season.
91 Days is looking pretty good. Great muted art style, lots of no-nonsense 1920's gangsters gunning each other down. Hero with a vendetta willing to just blow motherfuckers away in cold blood / shoot people in the back, so no pussy-footing around "good guy" stuff.
Days - soccer anime. Sticking with the tradition in sports anime of the hero being a complete noob, but plucky. Other than being terrible at soccer (likely to kill himself if he tries to kick a ball), I'm not sure what the hook here is. The best of these shows have the hero having some sort of personality quirk that's at odds with their sport's stereotypes, but this guy is more the blank slate type. Still ok, since by definition such a series must include character and plot progression.
Amanchu (latest thing by the Aria mangaka + director of Aria / Princess Tutu) is looking nice. Cute and fun slice of life. The setting is a bit more mundane than Aria however, so I don't think this will quite hit the same sweet spot. So just "nice". Flying Witch last season was a more standout charming slice of life.
Handa-Kun, which is a prequel to Barakamon, is pretty good. But the premise is somewhat similar to
Sakamoto desu ga?, which just aired. Kinda bad timing there.
Handa-kun is a massively paranoid neurotic mess who believes the whole school is out to bully him, so he is always trying to weasel out of any situation he's in. But the reality (unknown to him) is that he's popular and widely liked. Inadvertently, his cowardly actions are misconstrued by everyone else and only serve to make him more popular.
Time-Travel Shoujo is a science anime, with actual science in it (obviously barring the time travel). The
opening credits showcase the characters in the anime. Kinda looks like any average anime up until the 50s mark ... then you get the supporting cast, which is a little "different". The science part of it is actually pretty valid. There was a CPR scene in the first episode which was actually very realistic.
Fukigen na Mononokean - first episode looks ok. Highschooler dude who can see youkai. Nothing revolutionary, but so far it's tasteful and there's no sign of the magic battles or harem type shit that is so prevalent with that sort of setting.
Kono Bijutsubu ni wa Mondai ga Aru: man what a dull first episode. I don't think I can watch any more of this. The humor sucks and there aren't any likeable characters, as well as the premise being boring. There's no real hook that I can see.