Smart Current Affairs program by Vajiram And Ravi

Can anyone especially ex-student of this course give me a review of "Smart Current Affairs program by Vajiram And Ravi", I am planning of joining this course online.
And also for the prelims part in subjects like S&T, Environment and International Relations/Bodies, do they teach the basics as well associated with the current affairs or they simply go on to teach the current affairs content,
FYI : I am from non-science background so you can get my point especially related to S&T and Environment related basics concepts