I installed 500 Sq Ft of the Harris_Tarkett Vanguard flooting floor system on the first floor (cement-base). It looks great, but it creaks like crazy. I had to reject about 10% of the boxes for visual defects. I don't know what to do now with the creaks. I think I may have to remove sections and replace it. I do not recommend this product. If anyone has ideas let me know.