CA Final Classes

Can anybody suggest a good classes for CA Finals in Mumbai?
 (Andheri/Parla). Is J.K Shah Classes good? I read in a forum that "they rush with the portion and the professors are rude & inexperienced and teach as though students are born scholars". Is there any classes which will finish the portion in 5-6 months (morning and evening). Plz give me their contact nos. and address if possible.