Anyone still doing this workout?

If so, it is really ok to do this 7 days a week?
I thought that when working with weights that you should have a rest/ cardio day to rebuild muscle....?

Have done this video, level 2, 5 times since last Monday and my arms are getting more and more toned by the day, I am addicted, I want to do it again tonight but don't know if it is ok to do daily...?