I was pretty excited about T-Mobile because it's much cheaper than my current AT&T account and they have free data roaming in a bunch of countries including Canada. So I went to the T-Mobile store, gave them my home address and they claimed to have excellent coverage of my house. So I put down $80 to get a prepaid SIM and took it home. I have to wonder what they think 'excellent' connectivity means since I was barely able to get an edge connection while sitting at my kitchen table much less a 3G or LTE connection. My AT&T SIM card, in the same phone, got a (weak) LTE signal. Of course it's a pre-paid SIM so there is no refund. So even though I believe T-Mobile was misleading I'm out the $80. Oh well, better to find out now on a throw away SIM then have transfered my phone number and canceled my AT&T account. Live and learn.