I wouldn't do it CoffeeBean! My experience doing the same thing years back resulted in my paying the toll to get out of the contract with Sprint and it was over $600 to do so for 3 or 4 lines. Lesson Learned. It was from miserable service and I usually let grudges go towards companies that improve but just a personal belief that I have is Sprint is about as stable as Jello. They may have improved but not enough to change from Verizon IMHO.
Verizon can be aggravating sometimes but I don't think you can beat the service. That 55+ plan they offer with Unlimited Data is dirt cheap.
My Vote = DON"T DO IT!