For students who have living abroad over 2 years, speaking english everyday, you. can easily get a band 6.5 in 2 weeks using the free course .
If not, depending on your baseline level, if all modules baseline score is 5.5 for each, then do not need any paid course, just stick to the 7 days free course .
There is a success story on zhihu, we put the link in 7 days free course, you can have a look ha