Since the start of their agreement we have see a few co-promoted events and in return we have seen a lot of matches we didn't even know we wanted to see. Also ROH even had New Japan stars capture ROH championships and vice versa. But I am going to make a bold statement that the Bullet Club wouldn't have gotten as much attention in the United States without having the ROH platform to continue their development.
Now back in the day when I first began to watch ROH I would wonder why Kenny Omega would come and go and never really stick around in the company. As the years gone by I figured out that Kenny preferred being overseas in Japan to the American and now because of the NJPW Kenny is a major star in the States. Late last year the announcement was made that due to there agreement with NJPW it opened the door for them to begin working with CMLL down in Mexico. I think it's fair to say that they have really done a great job of showing how a working agreement could benefit a company.