I completed my training at The Language House in September 2018 and I can't thank the school enough for the knowledge and experience they've shared with me.
The thing that I've appreciated the most is how serious the school is about their alums and professionalism. Being a non-native speaker (I am Russian), I was half expecting discrimination and a difficult journey on my path, what with being surrounded by native speakers, complicated visa process, and political tension. Guess what, it doesn't matter where you come from, as long as you prove your level of English, you pay attention during classes, and you implement given knowledge - you'll be just fine! The school has such a great reputation that your origin doesn't matter - as long as you have the TLH TEFL certificate, the employees know - you're a well-trained professional.
From day 1 not a minute has been waisted: even if you're listening to a class, you're involved in it, practicing every point of the lecture. Not only do the staff give you useful knowledge, tips and offer their advice, they also give you a very detailed feedback on everything you do, be that homework assignments, lesson-planning assistance, or your proper lesson feedback. That is not everything, though! Starting from the orientation activities, you are introduced to a bunch of new people that in the matter of days become your closest friends, colleagues and support system. You don't have to struggle alone because they are in the same boat!
I strongly recommend The Language House TEFL. Great stuff, wonderful experience, appreciative students, and magical Prague. (and beer, lots of beer.)