walaikm asslam, in my opinion, JWT is a quite a brand in lahore, and no doubt, there are some really good teachers in that institute too. But i think you should prepare at home, read different books, make your own notes and work on your weak points. However, you need to find yourself a good English teacher, to check your essay, precis and comprehension etc. I visited JWT and i have a little knowledge about a few other academies too, they can provide you bundles of notes and books and fancy lectures but what is internet for? and those books and notes can be bought without joining the institute. Just find a good english teacher and prepare other subjects on your own. Best of luck.