AMAZING! I was anxious at first after I signed up for one of his bootcamps. After arriving, he placed my comfort at ease and pushed me for an hour. One of the many great things about his technique is that he offers different variations to the exercise. He is encouraging and very complimentary but keeps the group focused. After attending a few of his bootcamps, I have hired him as my trainer. At 42 and for someone who feels like he is in a rut with his workout, Petro is going to shake things up with me. He has already been kicking my butt! Definitely recommend him!