I have a grandfathered 'unlimited' data plan with tmobile. I get 75mbit down and 40-70mbit up where I live and the places I spend 99% of my time. I often use a vpn(to hide user agent) and tether to get those speeds on my laptop when I'm not at home. Haven't had a problem with data caps yet, often use 50ish gigs of data, and have tethered over 20gb recently with no issue. Edit: Nexus 6p on LTE 700mhz