These are great. They set up tubeless easily, and perform well. We havent had any rain, so Ive only used them in dry conditions, but they grip well on grass, sand and loose surfaces. Definitely recommend as a good all-around CX tire.
Mounted these tubeless on HED Ardennes as well as an Industry nine wheel. Both wound up with horrible wobbles on the tire. I've mounted the older BOS tires tubeless with no difficulty, and countless other tires. These are the only ones I have had this problem with, and it happened on two different wheels. Tried reseating them, reinstalling them, switched base tape, inflating at high pressure, inflating at low pressure and riding, etc. etc. Every time, horrible wobble (sometimes up to 1cm back and forth). It's unfortunate, as I was looking forward to racing these.
The MXP was THE tire I used for the 2018 California 'cross season. It excelled in 90% of the conditions I used it in - mainly powder-dry, hardpack dirt to light mud. I did use it in a muddy race and it did OK, but it's a tire not designed for mud, so I can't fault the tire in that one situation (The PDX might've been a better choice). I feel the tire was a contributer to me getting 4th out of 28 in a local cyclocross series (C45)!
I use this tire on my Cross bike for gravel, dirt and non-technical single track rides. I've tried 2 other tires because the one bugaboo with the MXP is that it is very difficult to mount. Having said that, I keep coming back to it because the ride quality is vastly superior to the other tires I have used. Despite sporting substantial knobs, it rolls surprisingly well on the sections of asphalt I ride to connect dirt sections. Since switching to the tubeless version, I now cannot get pinch flats, which had been a problem with the MXP clinchers. This also has allowed me to ride lower pressure, which further enhances ride quality and traction.