Overall I'm happy with this running shoe.  I wore out a couple of GT-1000 3's which I was very happy with.  They lasted, and provided great support.  The construction of the shoes seems similar.  One very important thing to note is that my version 3's were size 8.5, and fit perfectly.  Ordered the same size and should have paid attention to other reviews.  8.5 is a bit tight, but I'm going to keep these anyway and use for walking, not running.  I did not request a return.  Seller emailed me several times asking if everything was OK and offering help if not.  As mentioned I chose not to return.  I'm giving 4 stars instead of 5 only because it's difficult for me to rate a running shoe as soon as I purchase it.  In my opinion, they have to be evaluated over time.  That may not seem fair, but I'm being urged to post a review, and if so, that's how it's gonna be.