The asynchronous culture is synonymous with "don't ask questions", which is very frustrating as a new person. All info lives in Trello, so unless you have good understanding of the tool, you will struggle immensely. Additionally, a lot of info in Trello is outdated or borderline impossible to find. Since questions are forbidden, you'll likely spend hours searching for information. Rather than changing the tool (which few like) they are more keen to fire people or blame them for not being asynchronous learners. Internal email is also a no go, so don't expect to use basic tools for communication
Lack of team culture. Everyone is out for themselves and at no point did I feel truly welcomed from anyone.
No transparency - they are in massive firing stage with no warning so that has obliterated team morale