Bluetooth connnection with rpi

Me and my team are working on robots which communicate with eachother useing bluettoth , but we have some trubble with the Raspberry Pis sending and receiveing data from each other.
So we want to know if someone used this and if you did than did it work for you?

Thanks for the help!

I actually tried to do so but faced so many problems. Ultimatley, I had to give up on this project.