Watched Overlord and GATE. Both have neat premises, fairly decent characters, and good animation albeit with terrible CG sequences.
They definitely have pacing issues, though. Overlord has three arcs, of which only the second feels like a proper arc. It starts somewhat slow, picks up a bit midway through, and almost feels rushed near the end, as though the producers realized that they wanted a credible villain to be fought before the end and thus crammed a fairly large amount of material into a handful of episodes. Thus, the transition to the last arc is really awkward, the dramatic final fight basically comes out of nowhere, and nothing is really achieved by its resolution. I feel like the series would benefit from a longer run, though I wonder whether it'll get a continuation or not. Still worthwhile, though.
GATE, on the other hand, seems to have weird ideas about when to begin and end episodes. It does this weird thing where 2/3rds of an episode is walking around/talking, the last 1/3rd is an action sequence, and then the first 1/3rd of the next episode is the conclusion of the previous action sequence followed by another 2/3rds of exposition and dialogue. The realism also varies wildly all the way from "Fantasy world invaders with dragons don't last long against modern equipment" to "random short female JSDF member can easily kill hundreds of medieval swordsmen in hand to hand combat with a bayonet" and "America tries to get benefits from close ally Japan by blackmailing the PM and sending hit squads because muahahaha". Doesn't feel as crammed, but it still definitely has its problems.