It's not bad, its just not the best. If you are happy with your stack and it works for you that is all that matters. However, you will have a lot more feature

It's not bad, its just not the best. If you are happy with your stack and it works for you that is all that matters. However, you will have a lot more features available to you by using Postgres and tools like hasura to automate your api generation. The migration from mongo to postgres isn't that bad at all, but if it ain't broke don't fix it comes to mind.