The Wind SIM immediately became Emergency Calls Only once I received the text confirming the successful port.
Seems like this promo is really gaining a lot of traction. It's good until 4/30/2015 so if you're planning to sign up, do it soon to not miss out!
The bonus $25 code from a current user, can be stacked on top of the other offers (50% off first 3 months and double data/minutes).
If you are overbilled, you can use the CCTS complaint process to get a refund.