Sprint offers 30-day guarantee that you'll love the network http://www.androidcentral.com/sprint-offers-30-day-guarantee-love-the-network Sprint has announced a new 30-day satisfaction guarantee. The company is so sure you'll love the U.S. carrier's network that it will refund you the cost of the smartphone (once returned) and service if you're not completely satisfied. Available for a limited time only, this guarantee can be applied to new customer accounts, as well as eligible businesses who activate a line. But fear not if you're already a customer as the guarantee will be tied to any new lines you add. It's an interesting way to lure new customers, but if you're looking to make a switch you may want to check out Sprint to see if you'll be happy with its network. As an added bonus, Sprint will offer up to $650 to cover the cost of switching for a competitor network.