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Testimonials
Hans
Graduate Student
USC
TOEFL Score 65 ➡86
"After systematic guidance and training with Coach Stew, I’ve seen significant improvement in listening, speaking, reading, and writing. Coach Stew often encourages me not to fear making mistakes, which he believes is a major hurdle for English learners in Taiwan.
What impressed me most was his teaching method: while using English videos to train listening skills, he required me to write reflections, thus also training writing skills. Afterward, I had to read my reflections aloud, marking or correcting any errors. Coach Stew helped refine my vocabulary and grammar, and encouraged creating a word list of challenging terms. I also practiced reading aloud to improve pronunciation and listening skills. His six training methods are interconnected and have led to noticeable progress, even for someone who previously struggled with English.
Coach Stew frequently emphasizes that his training is not just for passing exams, but to ensure smoother English learning in the future."
Hank
Graduate Student
FuJen University
“At first, I wasn’t sure if Infinity Key could really help me improve my TOEFL score—I had limited time and wasn’t confident in my English. But after just a few sessions with Coach Stew, everything changed.
He didn’t just teach me grammar or vocabulary—he taught me how to think differently. I remember my first class was a tough listening session, and I felt lost. But Coach Stew told me, ‘Don’t worry. Just keep listening.’ That advice completely changed how I learn English.
My favorite part of the system is the Rehearsal Sets. It feels like I’m acting, not just studying. I imagine the scenarios, explore the meaning of the words, and actually enjoy the process. It made English fun, not stressful.
What makes Infinity Key so powerful is how personal it is. I don’t have to follow fixed material or boring textbooks. I get to learn through methods that fit me. That’s something no cram school has ever offered.
I absolutely recommend Infinity Key to anyone who wants to improve their English in a creative, meaningful way. And yes—I’ll definitely keep in touch with Coach Stew when I’m in the U.S.!”
Pony
Graduate Student
University of Minnesota
TOEFL Score 60 ➡90
"Through Infinity Key,
the results have exceeded all expectations."
Infinity Key uses a unique approach to help me build confidence in using English. Unlike traditional cram schools, where I was used to doing test questions and assignments, Coach Stew's method was completely different. At first, I doubted whether I could improve without practicing TOEFL questions, but the results proved this was exactly what I needed. This approach has not only boosted my confidence but also improved my skills more than the typical cram school experience.
Through Infinity Key, the results have exceeded all expectations.
Kelly
Graduate Student
“As soon as my counselor Kevin told me about Infinity Key, I signed up without hesitation. I didn’t want to wait—I wanted to improve my English as quickly as possible.
What surprised me most was how much more confident I became, especially in writing and speaking. I started thinking in English instead of translating from Chinese, and that’s when everything started to click.
The Brain Trainer was the most helpful feature for me. It helped me think faster, type better, and organize my thoughts clearly. I could feel myself learning to control the language my brain was speaking—and that made a huge difference.
Infinity Key doesn’t feel like a cram school. It’s more natural, more personal. The coaches are supportive and always encouraging, which motivated me to keep practicing. That’s the key—this program isn’t about studying, it’s about practicing, thinking, and using real English every day.
I would absolutely recommend Infinity Key to any of my friends or family who want to build their confidence in English. It’s not just a class—it’s a new way of learning.”
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