when to put in a message queue you ask?

hey everyone, i'm working on a system where we have multiple services that need to communicate asynchronously. right now, we're using direct REST calls, but that's starting to cause tight coupling and makes it hard to scale individual services independently. i'm thinking about introducing a message queue, like RabbitMQ or Kafka. what are your experiences with this? when did you find a message queue to be a good fit, and what are some common pitfalls to watch out for when adopting one