spoilers:end of spoilers
Yeah, pretty much the same feelings. The Eri spotlight chapter is definitely great on the level of "This should've actually been in the main book!" The oni and Valentine's Day chapters were fun. The camping trip mostly just an excuse for a bit more Bakugo introspection. The commercials were all funny, though yea I think they went a bit too long in trying to give basically every character a spot. And the faculty chapter was essentially a good conclusion for Midnight.
The spin-off still technically hasn't "concluded", so I'm hoping this means we will still get a 7th School Briefs book sometime in the future.