I would not recommend this show, but I did find a couple elements about the show interesting.
Positives:
Kamanosuke: In the show, while not a lot, there are little nuances about sexuality and gender. For an example Kamanosuke, probably the most interesting character of the show, constantly refers to himself as he/him, but we see other people in the society at first view him as a women, which leads viewers to think about gender identity, societies view of it at the time of the shows release, and etc as a whole. While I do say this, the show never dives deep at all into this which can be very bothersome.
Battles: The show did have some fun battles in it, although to be honest, there were also some boring battles to.
Jinpachi: This dude is a good character with a diverse background. Although, he was quite literally the last brave that was revealed so you dont get to see him much.
Sound: While im putting sound here, honestly sound was a mixed bag of positives and negatives. They did do some things well such as the banger OST and ED but most conversations felt bland.
Negatives:
Story: The story is very generic. It felt like the only reason why it was greenlit was because ninjas and Shonen were popular at the time.
Every other character: The rest of the cast had no depth. Especially the two main characters, Sasuke and Isanami. They were very cut-out tropes you can find done anywhere else better.
Overall: Most people will find the show to be bad. but a few people will find some parts interesting only if they were hyper analyzing the show.