I like the idea of a Fail2Ban alternative, but I'm not sold on the idea of sending information to a third party. It may be optional to upload/download the malicious IP addresses, but the text on this project's GitHub page doesn't indicate that it is optional.
My immediate thought is "Fail2ban works. I don't need or want communication with a 3rd party right now."
My immediate thought is "Fail2ban works. I don't need or want communication with a 3rd party right now."