I just purchased Shaw VersaLock flooring to do my living room and bedroom.  The locking system on the flooring that I received is different than the locking system on the sample I looked at in the store.  I doesn't seem very strong and does not lock easily.  It has very small square ridges and I went through quite a learning curve figuring out how to get it installed.  I am getting it installed but it is taking me much longer that other products I have installed.  I am also worried that it won't hold up, since that material and seems so much more weak and tends to break apart very easily.  I am not sure what to do.  I have installed about one third of my living room.  It looks really good, but I am a little worried about it.  I bought Shaw because I thought it was a good brand.  Now I am not so sure.  Please respond if you have any experience with this particular product and have and thought or ideas.