DON'T DO IT!!!!! IF you live in So Cal. Don't. I got SCREWED. I had a grandfathered account, was with At&T since cellphones were invented and I lost all of it transferring to T-Mobile. I recently switched to take advantage of their 3 Lines for $100 (no taxes or fees) which I thought was an AMAZING deal. Well, my data speeds went from 60mbps to 1mbps. No joke. I couldn't make calls and the internet was butt ass slow. You-tube? nope didn't work. I went to my local store to complain and while I was in the store I tested the data. It leaped to 55+mbps! I told the guy you must have a repeater in the building and he adamantly denied it. I literally stepped outside of the store and my data dropped to 12mbps. 100ft from there, 1mbps. They are shady MFr's. Needless to say, I went back to AT&T and now pay more than what I was paying before AND I lost my unlimited data plan. Worst mistake ever. DON'T DO IT.
How did you lose your unlimited data plan where AT&T and every carrier in the US is offering unlimited data now?
You're too dramatic...