I think a day or two of rest from exercise each week is important. Also keep in mind that after 4-6 weeks of doing the same thing all the time, your body gets used to it. So it's important to make sure your routine has variety (and be sure you're including regular strength training) in order to keep your body challenged and seeing results.
Glad you've found a workout you enjoy!
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford