5-6
The first 2 episodes are dog shit, 3 is great, the other are meh, the stuff with Hirulukk is also great the actor carried.
Only episode 3 is an improvement, imo, an objectively better version of the manga. The Hiruluk stuff is great, but that's also kino in the manga. So you get an adaptation that butchered some manga moments with some good moments, but overall, imo, neither a faithful adaptation nor enough original stuff for the run time.
A lot of improvement if season 3 is also like that, meh, cant imagine watching it, no more value was produced imo, sloppa