I did not write a review for last season so I'll log my thoughts on both combined here.
It is just what you would expect from an isekai power fantasy, with a bit of a political twist added on top. It hits all the usual tropes and cliches, and I'm not even saying that as a necessarily bad thing - I knew what I was signing up for from the start and it matched my expectations pretty well. Solving stupid issues in stupid easy ways because of his "other world knowledge" and such, it is just par for the course. Despite being easily predictable, it can still give you a bit of that good power trip feeling so was usually ok.
But I have to admit, at times the show just spent such a disproportionate amount of time focusing on some of those stupid issues that even my preparation was not enough to cope with it. Gotta reduce the score a bit from what it could've been if they paced it better.
The second season is for most part just "more of the same", or maybe even not enough so. Unfortunately it doesn't progress considerably beyond what was already shown in the first season. There is a lot to look forward to on the political scene, both in terms of uniting the human kingdoms as well as the war (or maybe negotiations) with the demons, but we get nothing aside of rounding up the war with the neighbor from last season. Even the new city he started last time is still not finished.
It would've been mostly a filler season if not for one attempt at a grandiose "plot twist" or an explanation of some character's previously odd and seemingly weak motivation. Without spoiling further all I can say is it will definitely surprise you and spur some debate and controversy, but it is questionable if it was really necessary. I personally think it does not add anything and is quite meaningless, aside of the potential to use it again in the future which unfortunately was not clarified at all. So just another negative point in the score from me here.
I do hope the show carries on, it still has much left to explore. If it ends at this point, I may have to revisit my scores and subtract another couple points for leaving it half-assed.