So after about 20 Days on FI i was over my 10 gigs of data. the coverage was not really better than T-mobile in my area except in the train tunnel, but it was not worth the cost.
Canceling my account and porting my number back to Google voice was SUPER easy. All wireless carries should be made to make it that easy.
If they even have a cost effective unlimited plan I would switch to Google Fi, but it is not ready for me yet.