I have been a very old flipkart customer and have satisfactorily placed multiple orders with them.Have ordered wide range of stuff ranging from books, memory cards, wireless router, MP3 player and even a laptop. I have no complains with them. Basically flipkart has become my first destination for buying any books.
Most of the times, the goods are delivered within 2-3 days and at times even within a day(got my "The Girl with a Dragon Tattoo within 2 hours:). The quality is decent and customer care is friendly. Would love to shop at flipkart.