Hey everyone, new to the community. Been reading alot of what you guys/gals been writing about fi. I'm thinking about switching, coming from T-Mobile. I already have the 6p, just FYI. A couple of questions, how is the GPS when on wifi?, I tend to use it alot when getting around town. Does it run smoothly hopping from one WiFi to another or better to leave it on 4G?. Once you sign up and receive the phone and sim, do I immediately call tmobile right after to cancel my plan? Or do I have to wait till the porting of the number is done?, I'm thinking wait but wasn't sure. I live in the Bronx, n.y. so anyone with fi out here could maybe let me know how it's running would be coo. Also, I don't see much information on the data only sim card, how does that work exactly?. Thx for the input in advance.