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10/10 This review is long overdue! Os, is the best trainer I have ever trained with and no one has given me the self confidence and skills that Os has shared with me. He takes the time needed to get to know you, your goals, strengths and weaknesses then formulates a plan of true greatness to ensure you succeed with your training!

10/10 Best instructor I ever had Os is awesome and the best instructor I ever had. I always looked forward to classes when he was teaching because I knew I would get a great workout and have fun. He is always very focused on his students and their goals. He always motivates and challenges me to go to the next level. There are not many like him.

10/10 I PASSED THE RKC!!!! I consider myself lucky that I happen to stroll into your class one day almost 2 years ago at Iron Core. Training with you truly prepared me for what was the most challenging but most rewarding weekend of my life at the RKC. I have always admired you but until this weekend I really did not appreciate your talent, skill and passion for your work and clients. You are an incredible example of what all RKC instructors should strive for. I wish you all the happiness in the world! Thanks again for making this happen. J

10/10 Fantastic Hour! My husband and I were in San Diego on vacation and we made a pilgrimage to meet Os - we weren't disappointed: his instruction was top notch - he gave me some great tips and tweaks to make my workouts even better. He worked with us from our own strengths (me - Martial Arts: my husband - triathlons) and gave us advice and guidance based on our own very divergent needs. It was a great hour - more like an hour and a half, he didn't rush us out and gave us as much time as was necessary. It was a very dynamic hour with a truly knowledgable instructor. Absolutely worth a stop on our vacation and a privilege to have worked with him!

Awesome Trainer, Awesome Results Os is my go-to trainer for Kettlebell workouts. Sessions are never the same, which keeps things interesting and your body on notice. I am a competitive tennis player, and because of regular my workouts with Os, I can stay on the court far longer than my opponents can (which is crucial in a tight match!), and I am much stronger than ever before. Os even helped me overcome my fear of "box jumps" making him my hero!! Os looks at everything, neurological stretches, Z Health, nutrition. Everything! I highly recommend Os to anyone wanting to be fit and healthy.

Go see Os!! I had been training with Kettlebells for a while from watching Pavel's videos. A trip out west gave me the opportunity to train with a certified RKC instructor. I didn't know what to expect when I showed up. I was immediately impressed with Os as a person. His training was superb! Very passionate, energetic, and creative instruction backed up by his extensive knowledge of Kettlbell training and functional movement. If I make it back to San Diego I will be sure to visit Os again for more excellent training.

Os is the best!Os is an incredible trainer. His dedication to training with kettlebells inspires one to push to a higher level, but always on a safe plane. He motivates me, even when I just show up!

I am stronger than I have ever been thanks to Os!I discovered Kettlebells about 2-1/2 years ago and immediately felt the cardio and stamina benefits, and saw strength development in my legs and butt. However, it wasn't until I started taking Os’ class that I added significant upper body strength. Os’ method of teaching safety pushed me to challenge myself with heavier weights. It's very satisfying to see the improvement and Os is incredibly motivating and inspiring.