Use real wood and float the floor.

When my instructor was trying out different studios we went to one that has a Pergo floor. OMG that is scary stuff! It is so slick I was afraid to pushing my movements as I would at competition. Plus the floor is set on cement. There is NO give and my knees were killing me. I told my instructor to find a different place to teach. I would NOT risk so much on a junky floor and neither should he.