I have done a similar program with added no gym needed exercises, and noticed a difference quickly
100 push ups (25 using barbells to get a deeper range of motion, 25 w/left hand on mini basketball, 25 w/right on mini basketball, 25 with both hands on a mini basketball)
100 jump squats
100 lat pulls
100 side lunges (50 each side)
100 renegade rows (50 each arm)
100 hamstring press (feet on exercise ball)
100 sit ups
100 squat thrusts
I do it in 4 sets of 25
these days instead of pushups I do standing shoulder/arnold press with 20lb dumbells. I do this because Sheiko has me doing 3-4 bench days a week...so, pushups were actually making me weaker.
I also do laterals and rear delts....my powerlifting routine is pretty brutal. so, I dont really use this pre-breakfast routine for muscle growth. I use it more for blood flow to my muscles, and recovery of my CNS.