Don't know how people have rated them with 5 stars...

Don't know how people have rated them with 5 stars. Their acharya vihar institute makes high promises but hardly any of those are kept. They mainly focus on theoretical part which isn't going to take you anywhere if you are interested for IT sectors. It's really hard to catch up if you are from non CS branch. They wouldn't help you out in programming and when you approach them for doubt clearing sessions they wouldn't deny you rather they would give excuses by saying that they lack faculty members and would insist on to email them the questions and promise to reply you with solutions. Kudos now keep waiting till eternity. They would treat your email as those machine generated mails to which you cannot reply. I don't recommend to take summer classes as it's a waste of money and time. Go for such institutes from where you can gain something when you are investment your precious time.