After farming some ex I can say that the raijus are boring and annoying.

It is locked to 90 so your 90 rotation is completely different

It is a forced double gap closer. This is worst that it sounds because your can't attack when bound and there is animation lock which removes some of your ability to dodge mech while using it

It forces you to use mudra on bunshin Vs trick since they are not lined up on rotation.

It can be used as a gap closer, but it is very conditional and you want to save it for buff windows anyway.