Ok so I'm extremely confused. One person tells me one thing, and then another tells me something completely different.

My friends and I, want to take KIPS academy, JT branch, for MCAT classes. The staff there is telling us that there are separate sessions for A level students (which we are) and some people are saying that its better, and some are saying that its not, so please tell me which is correct!
Also, the people there are saying that the long sessions are better, but I've heard that the short ones are, so what should be done about that?
And is there any difference between the 6-11 and the 11-4 session teachers? If so, which session's teachers are better?

Thanks in advance!