As an avid halo fan, I love it. What is even better is that a non halo fan like my fiance loves it.
Seems like the story is based mostly on the books, and not the game.
My one criticism is master chief does take off his helmet too much "for no reason".
The mandalorian showed that you can portray emotions well with a helmeted character.
Taking it of would be fine, but should have been something really meaningful, or at times that make more sense.
It seemed like the actor took ot off on many occasions that just don't make sense (at the end of a battle, ect)
Good show overall though.