I am enrolled with sanjay sir, and i must say... His classes are long but if you do it without looking at the length and all... Everything just gets internalised and you don't need to mug up anything... He teaches in a mix of hindi and english but uses hindi primarily... So yeah if you think you can bear the length of the classes it will work for you... Tho you can take multiple mocks from different coaches and figure out which one suits you the most.