Yes, I did the Trinity Cert at SGI. It was excellent. The trainers were brilliant and went over tons of stuff in a very short time. All of us trainees bonded, collaborated and generally helped each other out... Especially in the stressful moments in the build up to lesson time every day.
It's not the kind of vibe where they just want your money, at all. They genuinely want to guide you into becoming the best teacher that you can be.
I have kept in touch with them, got jobs through them and also did the distance learning Trinity diploma with them some years later - great place... Highly recommended!
Priscilla, you said that there weren't many reviews online, but they've got tons of extremely informative and glowing references on their teacher training website...http://www.tesoltraining.co.uk/tesol-ce ... stimonials
I know two people off there that I've met through teaching, so I can say for sure that they are genuine testimonials.