A:AnswerPoor customer service so pray that you never need support from them on the phone. If you ask for a manager they hang up on you. They give conflicting information and the level 1 phone support doesn't have much power.
A:AnswerAs long as your phone is unlocked. Otherwise, you shouldn't have much trouble. For $5....give it a try to see if it works for you. The first SIM is to try it with an assigned phone number. The second SIM card is for you to transfer your existing number over.