I have a 2015 Tundra 5.7 with 134k. I tow a lot with it and it has been flawless.
If I baby it, I get 17mpg when I take it to Yorktown...no interstates and the cruise set at 62mph. Around town is 15mpg at best.
This will be my last 1/2 ton truck. I am also a fan of the Tacoma - I have had several of the smaller trucks and they were also superb.