It works!
I needed to reach a score of 26 specifically in the speaking section of the toefl test. I tried all the methods that I could think of: watching YouTube videos, doing self-practice and using speaking templates. Sadly none worked, for my 4th take I decided avail the services of TST prep. I went with the speaking assessment and choose Miss Katie Reaburn as my teacher, she was of tremendous help. She helped me understand what I was lacking/identify areas where I could improve. She gave me tips on how to achieve a higher speaking score, and by following them I was able to get more than the required score!