I watched SSSS.Dynazenon, which is pseudo-sequel to SSSS. Gridman, in a single sitting last night. I think the latter (that is, the first series) is probably superior, but the newer joint wasn’t half bad. They both occasionally delight with subtle humor, and if you love watching giant robots battle kaiju, hey, you got that too.
One of the kaiju in particular in Dynazenon is super cool, it’s a shame that it got about 2 minutes of screen time. But this isn’t really an action show. The battles are just the backdrop for the character drama, and I’m down with that.