Client reviews

Real people.
Real results.

5.0 ★★★★★ Every review 5 stars · left by clients through my booking system
Pain & mobility
★★★★★

Jerome is extremely knowledgeable about mobility training. I came to him with multiple concerns around back and knee pain, and learned so much even in the first session. I left feeling noticeably looser and with a programme I genuinely believe will make a difference. Highly recommend

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Imogen
General review · Apr 25, 2026
Confidence in the gym
★★★★★

I was familiar with the gym but always found it a slightly intimidating, uninspiring and confusing ordeal, with so much information out there. Jerome helped me overcome all of this with his patience, wit and practical guidance, catering to my specific goals as well as assisting with my personal work-out plan. I would definitely encourage others to sign up to his PT sessions! - Rocío

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Rocio Lira
General review · May 5, 2026
Back on track
★★★★★

Jerome is a knowledgable and supportive PT. He caters his programmes to your specific needs and goals and has an array of supportive tools for any kind of fitness journey you are ready to embark on. His timings are flexible and his focus on mobility is what really interested me in his practice. I worked joined a program with him for almost 7 months which is a testament to his work. He was recommended to me by a friend and he got me back in the gym after a few years of neglecting my fitness. Even tried out boxing which I have never done or thought I would enjoy so much. Highly highly recommend booking a session with him!

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Luciana Samaniego
General review · Apr 24, 2026
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More reviews.

★★★★★

In 3 sessions I’ve learnt a ton of exercises and stretches to help with strength and mobility. Jerome’s knowledge is immense and the way he tailors his sessions to match your requirements is second to none! I’ve found such an improvement in my form, as well as noticing the changes with pains I previously experienced when lifting weights. Would highly recommend to anyone thinking about booking sessions with him!

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Darrell Kerr
General review · Jun 10, 2026
★★★★★

Jerome is the most professional PT I have ever worked with . He does listen and understand customer’s needs and this makes him exceptional !

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Irma Dagyte
General review · May 14, 2026
★★★★★

I absolutely love my private 1:2 sessions with Jerome! He trains me and my friend for about an hour(often longer).His professionalism and patience is next level, his calm energy keeps us going, and somehow he still manages to push us to do our best.I always leave feeling happy, strong and energised, even if my legs have other opinions the next day! He is simply the best !

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Melitta Lorincz
General review · Apr 24, 2026
★★★★★

Honestly, one of the best trainers I’ve worked with; Jerome is excellent!!! Period. He’s really knowledgeable, organised, professional, kind and every session feels structured and purposeful. He is always genuinely there, paying attention, correcting form, and making sure you’re actually doing things properly. He creates a really comfortable environment too, which makes a big difference. I never feel judged, just supported and pushed (between a tear and a laugh😆). His motivation is genuine, never forced or fake. You can tell Jerome really knows what he’s doing and genuinely cares about my progress. Just an all-round absolutely awesome trainer who takes his work seriously. Can’t wait for next session! Highly recommend!!

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Fabiola
General review · Apr 24, 2026
★★★★★

I’ve been training with Jerome Marshall for a while now, and it’s been a great experience. He took the time to understand my goals and created a plan that’s both challenging and achievable. His multidisciplinary approach covers hip mobility, spinal mobility (including rope flow), strength & conditioning, and functional strength training. Each session is well-structured, engaging, and tailored to me, and I’ve seen real progress in both my strength and overall fitness. He’s incredibly motivating, supportive, and always professional, and a great asset to Sydenhams Gym Group. I’d highly recommend Jerome Marshall to anyone looking for a knowledgeable and encouraging personal trainer. You can check out his work on Instagram: https://www.instagram.com/flowithj (@flowithj)

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Nadeem Sharif
General review · Apr 24, 2026
★★★★★

Jerome is an amazing great coach. He is really supportive and genuinely committed to helping you grow with each session.

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Safa Al-Baz
General review · Nov 1, 2025
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In their own words.

★★★★★
"He introduced me to flow movement and rope flow — which has been genuinely life-changing. It's so much more than just training."
A
Astha
★★★★★
"After just three sessions with Jerome, and a couple of months of practising what he taught me, I'm now genuinely confident in my movement."
R
Richard
★★★★★
"Jerome is super friendly and approachable, and he makes working out genuinely fun. He brings you out of your comfort zone in all the best ways."
S
Steve
★★★★★
"If you want to become more in tune with your body, and be functional, balanced, and strong — Jerome is your person. Genuinely."
T
Tamara
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