Bought it for elderly relatives who are prone to falls (in between beds).  Not the best for this purpose.  The edge is too high and can cause them to trip, and the surface is shiny enough that it doesn't provide traction.  I eventually had to buy a different one that had tapered edges and a surface that had good traction, that was firm but lower.  If this had been advertised as a "falling" mat, I would have graded it even a bit lower (it does cushion, however).  It's a little bulky, but folds up readily and has carry handles.  The surface is easy to clean and wouldn't attract dirt.  So it's likely a good exercise mat, especially if you want some ample cushioning and don't have to lug it around (it can fit behind a door well).