I noticed the feedback for aerobics use. Would this be a good solution for HIIT workouts, CrossFit, P90X3?

Our 1" MMA Mats are great for HIIT workouts, some CrossFit, and P90X. When installing these as a full floor, they will not move when worked out on and will provide you with ample shock absorbency. When installed as a mat, these mats do have the potential to move around when performing certain moves. To prevent this from happening, we recommend using some double-sided tape under the tiles.