Since I started to do (then teach) Essentrics regularly, I have noticed:
Elimination of neck and shoulder tension - Constant stress left my neck and shoulders with tight tense muscles. Now the tension is gone, thanks to shoulder blasts, overhead reaches, and figure 8 arms!
Relaxed low back - I used to have ongoing pain and discomfort issues in my low back (including sciatica!) That is gone, thanks to core exercises, hip flexor stretching and more!
Smaller waist - I went from a boxy waist (darn hormone shifts) to a nicely defined waist. Thanks to side bends, reaches and targeted core exercises!
Smaller thighs - Even as a 110# teenager, my thighs always touched as I walked. No more! (and I'm far from 110# now)
Increased flexibility - Before Essentrics, I had average (not great) flexibility. Now I can do front splits on both sides! Thanks to standing quad and hip flexor stretches and floor pretzel stretches.