I love my MTR's. My TJ had 245/75R16 (31's) on it when I bought it. I wheeled it a lot of miles last year and I was very very impressed with them. I felt like they handled all the different terrain I threw at them with flying colors. I put 17,000 plus miles on them on the street last year as well and I thought they rode decent for a E rated sidewall and fairly quiet. I liked them so much that when I replaced them, I put 285/75R16 MTR's on it. Had them off road for the first time last week and at 14psi, I loved them. Snow, mud and rocks were no match for them....
My 03 Rubicon build thread ---> http://www.jeepforum.com/forum/f22/1320quicks-03-rubicon-build-1504699/