You love HSN, so why would you not love the HSN credit card? You usually pay for your HSN purchases with a credit card anyway, so why not use the HSN card. Besides, you get benefits from the use of you HSN card that you wouldn't otherwise get from another credit card.
One of the benefits of your HSN card is that you get to earn points that earn you free shipping on shoes, jewelry items, cosmetics, and accessory items. These shipping deals put money in your pocket as they accumulate and you get to keep money that otherwise would have gone to UPS or FedEx.
Other benefits include the MasterCard logo, meaning that you can use your HSN credit card all around the world. If you want the MasterCard logo, make sure that you apply for the HSN MasterCard: there is also a non-network version of the card that you use only with HSN.
You can apply for either of the two HSN credit cards online, so you can know right away if you are approved. In additional to the points you earn, you also qualify for special discounts from time to time. Flex pay is one more example of how you can get Extra Flex payment terms on certain items.