I had that plan up until a few weeks ago when I found out I got scammed and my Note 3 was blocked by T-Mobile. (sniff sniff)
Now I have the Straight Talk AT&T plan at about $50 per month for 2.5 GB of data. I don't even know how many minutes I have cause I never bothered to look.
$30/mo here. Almost too-cheap-to-be-true too. I worry about this plans future.