I find their service excellent, have ordered over 40 books from them till date and all of them have been delivered well within 2 to 3 days at the most. And with them foraying into other areas such as computers and other electronic products, it just seems to get better.
Everytime I step into a bookstore I have flipkart open on my mobile and I can assure you there hasn't been ONE instance when the prices in the bookstore have been cheaper, rather at times I find a steep difference between the two, obviously without saying, in favour of Flipkart.
I've made special requests on two instances for expediting the delivery before the estimated delivery date and they have complied without any questions, rather with a helpful note.
Recently I purchased a Kingston 8GB Pen Drive from Nehru Place for 410, thinking I've got a great price I checked out the prices for the product on flipkart, and voila! It was for 404 there. That's not much of a discount at all, but then considering the fact that I get it delivered to my doorstep and save on the fuel costs speaks volumes.
So, is Flipkart India's Amazon? I'd say very much. With their expanding range of products, user base, cash on delivery and great discounts, there's nothing stopping them!
Just to top it off with another good experience, I recently returned a book to them and they gladly accepted it without any questions asked and even gave me the choice of a refund or store credit.