One of my friends studied at NLU. According to him, life at NLU was challenging. It was not difficult but challenging in a way that the beliefs he had changed gradually. It helped him learn things about himself and evolve. He learned that life in a hostel is what someone makes of it.
Speaking about NALSAR and NLSIU, both their campus extra-curricular activities are much more vibrant than NLU Delhi. However, both institutes have a competitive environment for study and also have a lot to offer, unlike NLU Delhi.