Season 1 while flawed was good overall with an actual story, season 2 was almost unwatchable. The characters introduced in S2 were pointless and unlikeable, there is a story so thin it could have been dealt with in minutes rather than hours and the once superb Tennant and Sheen - which made S1 such a delight - struggled with such poor material.

The humour of Good Omens feels a little dated as it's the school boyish sub-pythonesque type of stuff that we see a lot less of today. Anyone my age and British will remember Pam Ayres and Adrian Mole and it's that kind of whimsical humour that is not something I personally like but was a big hit in the 80s when this was written. David Tennant does his over-the-top mockney Doctor Who kind of thing; Michael Sheen is wonderfully camp. It's trying way too hard to be clever for my personal taste but production values are high and I can see how it would appeal to people who enjoyed the book and appreciate 80s humour.

EDIT: As another reviewer has said, anyone who failed to give this 9 or 10 on day one was immediately downvoted for having the "wrong" opinion. After all the 10 star reviews (do you REALLY think it's perfect??) Very few shows in my opinion are total drivel or total perfection- such extreme reactions are not helpful and make IMDB a lot less useful than it used to be :-/