I felt desperate when I recognized that I had to get a good result from TOEFL iBT test to get funded by the government and then I met TST prep. With the help of free VDOs and the emergency course, I passed the requirement of my own country with only 3 weeks preparation but there were only 5 missing points to get my application accepted by the National Heart Center of Singapore.
Overall, the emergency course gave me a very good start and provided precise concepts.
PS. I am going to take the test again by the next month to obtain the missing 5 points.