Anticipation: it is intended to protect joints, the silencing (multiple dwelling) and slide on the wooden floor as little as possible.
After just two months of use, I have to say that the material is very very soft and the memory effect remarkably strong. After 30 minutes workout on the mat (a lot of exercises on the knees and elbows) is highly compressed and at the stress points at most half as thick as originally. This dampens the cardio fast step change hardly the sound and the joint protection also falls away quite so. I've found that I quite often the "space" Change during the workout so that your knees do not hurt.
On the positive side even to mention that they are least slips from my three mats. It was delivered very quickly and well packed and the two rubber bands are virtually for compact storage.
My other two mats are of Royal Beach. The oldest is over 6 years old and still fantastic for workout. Only when she slips it quickly cardio. From the material, these mats are fixed and pressure resistant, yet still more pleasant than that of Gorilla Sports.
Conclusion: I would not buy me, for my purposes, once again.