We purchased this to lay over a concrete floor in our basement, which we wanted to repurpose as a home gym. What can I say - this is exactly what we needed!It was easy to buy a base pack and then add additional pieces for the irregular space we had. It’s got a little spring in it, but it’s pretty solid and seems very durable. And the black with grey fleck hides the dirt pretty well :)It was also extremely easy to install, all the sides clicking into place very neatly. We just had to cut a notch off one of the corners when making an odd shape (see the third photo) - it took 1 minute with a steel rule and a craft knife.We spent several hundred dollars on this flooring and we are really pleased with the outcome. Would highly recommend this product if you are trying to do something similar.(Also, the customer service from the seller was great. Thank you).(Added note - some people have complained about the smell of these tiles. We didn’t notice any issue. Out of the packet, laid on the floor, no smell, done!)