Word. I used to avoid cardio like the plague til I started DC. A huge ass amount of protein and food with a carb cutoff and morning cardio- steady, fasted state, 3 times a week makes a HUGE difference in leanness while eating gross amounts to build rapid size.
I actually was finding myself too lazy to drive to the gym first thing in the AM, and am not doing outdoor cardio in MI in winter when it's all extra icy and dangerous out, so I go old school wrestler- I do stepups on a box slightly lower than knee high, alternating legs, for 30-45 minutes while I watch tv.
Get's the job done good and actually has helped add a little leg size without burning me out or being "HIIT", which I would never do in the AM.