Positive points, scenery and action shots look authentic, although the sun bleached effect is a bit overwhelming. Acting by the cast is enjoyable and suitable to the situations.
Negatives, I understand the need to unravel the timeline, but whole sections (and characters) of the book are ignored. I personally felt that the entire Eternal City/Yossarian goes AWOL episode was a waste. Also not going to forgive how Snowden only gets mentioned in the last episode.
Prefer the original movie, and the book is still one of my all time favourites.