Well I think I am elligible to answer this question.Physics being one of the toughest subject to persue Masters Degree is something extraordinary here.Lets go one by one.
Firstly lets talk about infrastructure.Its good.Labs are well equipped and you will be involved in various experimental works.
Secondly,Faculty members.Du Physics dept. has one of the best faculty of India.Ask any proffesor,anything…any topic..he/she will take you to the core.They are student friendly,interacting and has vast amount of experience.So,you dont need to doubt about them.
With some pros,there are few cons also.The strength of class is one of them..There are around 150 students in a single class,so it becomes sometime difficult to interact im the class.Second thing,syllabus is vast and semester system lacks time..so workload will be too much.And sometimes it becomes difficult to score marks but you can with hard work.
Rest is upto you,how you manage it overall.If you start from the very first day,you will be im good position till the exams otherwise no one can help you here.
Lastly one more thing , I must say.
IF YOU WANT TO SCORE GOOD MARKS ONLY,THIS IS NOT THE PLACE FOR YOU.BUT IF YOU WANT TO GO INTO DEEP AND EXPLORE YOUR INTEREST,DU IS THE BEST OPTION.