Cardio Coach Vol.2 (Revised)!

Saturday I did 2 workouts.  The first workout I did was at Gold's Gym on the Elliptical.  I did Cardio Coach Vol. 2 a approx. 37 min all cardio interval workout from Sean O'Malley.
Here is the Breakdown (From his website):

1. 4:13 Warm-up - During the warm-up you will be asked to find a speed and resistance setting that is equal to your Level 1 exertion and will be responsible for gradually increasing your effort until you reach a level 2 effort or green zone heart rate before the beginning of the first challenge.
2. 7:49 Challenge 1 - In challenge 1, set your sights for 4, level 3 hill climbs. Each hill is one minute in length with a 1 minute recovery.
3. 8:24 Challenge 2 - The first 1:50 of this challenge gives you a quick level 1 or level 2 recovery. Then, it's onward and upward with a level 3 hill climb for 3 minutes. You will have a second brief rest once at the top but the challenge isn't over. Prepare for a 3 minute level 3 sprint as you zoom down the mountain.
4. 3:18 Steady State/Rest - This phase is designed for recovery after the 2nd challenge. Once recovered, jump back into your level 2 steady state phase and get ready for the final challenge.
5. 8:39 Challenge 3 - The 3rd challenge is optional in the Volume 2 workout and is designed for more advanced participants. Those who are seeking the challenge will be faced with 4 Level 4 fast paced hill climbs. Each hill is 45 seconds in length with a 1 minute rest in between. Both your speed and resistance settings will help you achieve close to your Level 4 effort. Heart rate should stay in the orange zone for most of the challenge and depending on how hard you work, you may just see some red zone numbers.
6. 4:59 Cool Down - Equally the most important phase of the workout! Make sure that you have recovered from the final challenge before getting off your exercise equipment.

I did like the workout and found it challenging.  I did not like the choice of music. I give it 4 out of 5 stars.