I'm grandfathered on the AT&T unlimited plan. My monthly bill is $65. After 5gb usage, AT&T throttles my data. For the longest, I had no problem at all with that. Reason being is I would usually get close to or above 5gb just around days before the new cycle. Streaming music, e-mail, browsing, and etc works fine when throttled. My issue is I've started to consume a lot more data recently mostly from streaming video. I can't even use the Youtube app like I want anymore, I'm forced to use the Viral lite and set it on a lower resolution. Also been watching plenty of Netflix and plan on using my Slingbox again. So when I get the Note 4, I know my data usage will probably be 10x what I currently use. Being that said ......... T-mobile's Unlimited 4G LTE plan with included 5 GB tethering for $80 is very enticing and I'm going for it. I don't mind paying extra than what I'm paying now cause AT&Ts individual plans are freaking ridiculous, and they don't offer unlimited. From speaking with my friends in NYC and tri state area, they have nothing but praise for T-mobile's service. Same with So Cal area which I travel to often. AT&T's service has been more than good to me, even their customer service. But the throttling is no longer doable for me. Hate to leave them but their plans suck, plus T-mobile's Jump seems better than AT&T's NEXT but I still have to research that more.