Reviews for Principal Fitness

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  • April 2021

    Great experience so far! Reasonable cost, friendly trainers, and people who want to help get you back in shape and healthy again!

  • August 2020

    Karl is an awesome trainer! He knows all the in and outs of fitness and is a great coach. I give Karl a score of 100% because not only does he know a lot about the fitness field but he is a great individual. Contact him now for a great session to help meet your personal fitness goals.

  • March 2016

    Big results, small classes, individual attention. While working at your own pace the routines are easy enough for beginners and tough enough for seasoned gym rats. Interviewed Karl before taking a personal class, 6 months later still motivated & health records show amazing progress. Full mobility in formerly rusty joints and great energy levels. Good people enrolled, easy to take classes with & no judgements here, polite, fun, share a few laughs, here to stay healthy. Karl shares his consummate anatomical, physiology & nutritional knowledge to everyone's benefit. Highly recommend Crossfit Lake Zurich, the results are yours when you choose this location.

  • Principal Fitness

    28039 W Commercial Ave, Lake Barrington

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