I made a purchase on this website and did not have any problem. I bought a couple of books from this site because they were a little bit cheaper when compared to flipkart.com where I do shop often. I received the products in time. But I feel that the information on the product page must be more detailed. And the clumsy packing should also be improved. I didn’t face any need of contacting the customer care. So, I do not know about the efficiency of their customer care service.
As a whole I would recommend you to go for infibeam.com if your desired products are not available on your favorite ecommerce site.