What the reviews actually say
By Russ Jensen, PhD
Owner & Head Instructor, Ground Rules Academy
I don’t write these posts to argue about rankings. I read Google reviews for a much smaller reason: they tell me whether the room feels the way I think it feels.
When a new person walks in, they don’t care that I can explain torque. They care whether anyone will notice they’re lost during the warmup. They care whether the mats are clean. They care whether I’m going to bark at their kid or actually teach. A review is often the only honest report I get of that first hour, because the student is too polite to say it on the way out.
I still remember a night in fundamentals when a brand-new adult kept apologizing every time they moved. We were working a simple frame from bottom side control — forearm in the hip, head off the floor, create a wedge so a larger person can’t just melt through you. It’s physics, not toughness: make a structure that fails slowly instead of all at once. Halfway through the drill they stopped apologizing and started asking where the frame should point. That is the class I want. The reviews below are people describing versions of that room, not a marketing department describing a “leading school.”
Here are three that have stayed with me.
“I've been training on and off at Ground Rules Academy since last year, and it's been an awesome experience every time I come back. The instructor stands out for his clear, detailed instruction and incredibly hands-on teaching style. As a college professor and MIT graduate, he brings a level of clarity and structure to the class that makes it easier to understand and apply proper technique. The gym itself has a friendly, welcoming vibe and is always kept clean. Whether you're just starting out or looking to sharpen your skills, this is a great place to train.”
That one matters to me because “clear” and “hands-on” are the job. If you can’t feel why a grip works, I have not finished teaching it.
“Sensei Russ is a phenomenal coach—skilled, encouraging, and fantastic with kids. He creates the perfect balance of structure and fun, and truly brings out the best in his students. We’re so glad to be part of this community and highly recommend it to any family looking for a meaningful martial arts experience for their kids.”
Kids’ class is a different problem than adult class. A seven-year-old does not need a lecture on base. They need games that sneak in hip movement, and they need to know the adult in the room is paying attention. If a parent writes that the balance of structure and fun is there, I will take that over any adjective about being the best gym in town.
“Ground Rules Academy is a great place to learn and train Brazilian Jiu Jitsu. Sensei Russ is an excellent instructor and does a great job of making everyone, of all skill levels, feel welcome. The facility is clean and the schedule is very accommodating.”
Welcome is not a slogan. It is whether a white belt and a purple belt can share a round without anyone getting dumped on their head for sport. Clean is not a slogan either. If the mats are sticky, I failed a basic duty.
If you already train here and the room has been useful to you, a Google review helps the next nervous person decide to walk through the door. That’s the whole function. It is not a campaign.
If you haven’t started yet: come try a class. Sprouts (5–7), Buds (8–13), fundamentals, advanced, and open mat. The address is 7034 Commerce Cir., Ste. F, Pleasanton. Free trial is on the site.
Russ Jensen, PhD is a Brazilian Jiu-Jitsu black belt and the founder of Ground Rules Academy in Pleasanton. With a PhD in physical chemistry from MIT, he brings a unique, science-based approach to teaching technique on the mats. He is the author of Ground Rules: Simple Physics for the Grappling Arts. Read full bio