HSPA+ vs LTE
I've had nothing but terrible LTE reception in my area, despite T-Mobile's coverage map showing I'm in the area. So I decided to do a little test.
I woke up late at night and ran Speed Test on my phone to check my speed. I found that I got the best download speeds late at night when I had my S3, likely due to less traffic. Here are my results:
LTE: 3.80 Mbps Down, 1.31 Mbps Up
HSPA+: 12.69 Mbps Down, 1.7 Mbps Up
Crazy isn't it? Good thing I'm on Wifi almost everywhere I go otherwise that would drive me nuts. Results are even worse during the day.