PC tethered to the Motorola RAZR MAXX HD on Verizon - Speedtest

This morning I cut the cord. AT&T DSL had climbed from $19.95 to $29.95 to $38 to $51 per month over the last 2 years. My last speedtest.org rated the connection as a D- for local comparison and an F+ for global. I tethered the Motorola RAZR MAXX HD which is on Verizon to the PC and it took about 45-seconds to configure. I am now at 24 Mb/sec download speed vs. 5 Mb/sec on AT&T DSL and an upload speed of 19 Mbps vs. 1.3 on AT&T DSL. My ping time has increased by 15 ms. AT&T, 6 down and 1.5 up is not worth $51/month. WTH were you thinking???