Monthly deal so no risk just try it
I've been on the 30/mn for about 6 months now, love the service, on my rooted exhibit I've been tethering with no warnings like I got with AT&T...note tmobile network is very poor generally, so depending on your location results will vary greatly. I get 4g here in Dallas but if there is an event with an overloaded network or I'm driving across state tmobile is god awful, but for the price I can't complain how rare that is for me...and grooveIP is really not usable unless you have a perfect data signal(not moving either) so don't count on that to supplement your 100 min. The Samsung exhibit is a cheap phone and is buggy but if your a semi tech guy and root or install a custom rom you can make shit shine. Any tmobile 4g phone will work though, so if rooting is a concern you can hit Craigslist for a similar deal on a better phone.