This chapter is an easy 5/5.
You people are hard to please, or just don't know what you want. When the story doesn't go like we predicted or lacks "advancement" we all cry. If the story went as fast as we/you wanted it would probably be over already. It's like you want everything in one chapter. Plus Gai's death is on the horizon so it's only suitting he gets "coming of age" flashback/chapter.
Had:
-8th Gate Action, that even Madara seems timid of
-A new, touching, and fitting flashback; which introduced Gai's dad
Lacked:
-Kage and Swirl zetsu scene, haven't been there in awhile
-Bee, safe to assume he's dead? Unless some of the 8 and 9 tails chakra is a lifeline.
-More Madara perspective, I'd like him to elaborate how he knows of the