I am a HDFC account holder and I have been using it for the past 5 years as of now. I especially admire the bank for the following features:
1) SMART BUY: A unique online platform for shopping and purchasing tickets. I usually get benefit of zero service fee using this platform. Moreover I can avail discount via purchasing air tickets or flipkart shopping.
2) FOREX CARD: Online forex card account platform allow me to get money in multi-currencies in a flash of time. I can send money to my near and dear ones just a click of time without use of external platforms such as Wastern Union, etc.
3) HDFC discounts an zero interest EMI options on Amazon on festive seasons is the best feature available.