Kiran Rao is in a league of her own. She has no intentions to pander to a commercial taste or use any tried and tested formulas here. It appears as though she has pretty much made this film from her own inspirations and not from popular influences. In short, you are more likely to appreciate it if you have a taste for experimental cinema and you don't mind the abruptness that leaves you lingering in the dark, like in many European films.
I was pleasantly surprised by Prateik Babbar's immense acting talent and strong screen presence (much like his mom, Smita Patil). Aamir Khan never fails to impress. What I liked most about the film is that it stayed with me a long time after the end credits rolled and I realized that I really cared about the characters - the regular people of Mumbai - who pass you by in the crowds, each harboring an interesting story of their own.