The mats are super light and move every time you hit a ball so it's a little annoying to have to reset the mat after every swing. I wish they were heavier to avoid movement. I've only used them a couple of times so we'll have to see how long they hold up. The description mentions that the mats allow a level playing ground when hitting the ball but if you don't have a level ground to place them on the ball will be below or above your feet. I'm using mine in the backyard so I'll need to figure out a way to level it. I only bought these mats because I had Best Buy bucks so I ended up paying around $25 if I had to pay full price $85-100 I would not have purchased.