I have checked and tested this flipkart as per my experience I haven’t received any issues with there products and services but here I want to share one of my friend experience who was little disappointed with there services, the problem is not with there products I guess the only problem is with there staffs who do not make the things properly that it has to be. Last time my friend purchase a Tripod from flipkart and guess what it was damage inside just because of the carelessness of the deliver guy, many times the things we purchased( like the things need to handle with care) comes as a damage.
So my only point is to highlight, if the product delivered to the customer with damage it would be nice for both.
Flipkart always deliver there products on time . The website and app also design very well as friendly user, each produt has a category and easy to search. And at last yes you can rely on there products and there services, all they need to improve there service staff.