We have been with another carrier for about 10 years. However, we've come to the conclusion that the bill for 4 lines has gotten really expensive and we are looking at Sprint. We can get 4 lines on the Sprint data plan for less than what we are paying for just texting and voice with our current carrier. I am considering paying an ETF to switch over rather than continue to pay more than I should. However, we have heard very disturbing things about Sprint's customer service. What are your experiences with Sprint? Can you offer advice on which phones would be good for teenagers?