I want to make it clear that I am not hating this show simply because it is not following the books 100%, nor am I hating it just because it includes LGBTQ+ content.
What this show lacks is the feel of monsters scaring you. You will not see monsters like Prince Khor-Ru (mummy), Werewolf of Fever Swamp, etc. There are two seasons, and they have no plot in common with each other, so I will focus on the seasons and their faults.
Season 1: As previously mentioned, there aren't "monsters". Season 1 is more focused on cursed artifacts (Camera from say cheese and die and the cuckoo clock of doom), and how some teenagers' parents' backstories come to haunt them. As a spoiler, it all leads up to Slappy.
Season 2: This departs from feeling like goosebumps. While the plot was different, season 1 makes some connections to the original story. However, season 2 makes no connections to the story besides a brief moment of staying out of the basement. No cursed artifacts, no slappy, no mention of anything from OG goosebumps. Also, what really made me dislike season 2 was the show wasn't scary as opposed to gross. Too many moments of characters throwing up and coughing up alien slime.