Finally watched it on Disney+, the final episode released yesterday.
Overall, it was... okay. The middle episodes really fell flat for me, and the show as a whole just felt kinda bland and grey. Every planet Disney's The Mandalorian lands on feels more or less the same as the last one he visited, and the side characters are a bit hit-or-miss. That said the last episode was really good.
I guess I'd give the whole season a 7/10? It's fine?