I just bought this stuff and I can tell you that the quality is NOT great. There are gaps and height/thickness differencess that should not be present on $4/ft flooring. Seems that the tongue hits up against the groove before the top layers are touching. And some planks are 1/16 to 1/8" higher or lower than the adjacent ones. I have already spoken to Harris Tarkett and they told me to exchange for product from a different lot. I did that and still have the same peoblem.
At this point I am probably going to just return it and explore my other options.