I recently received these New Balance tennis shoes model 1004 in exchange for some New Balance walking shoes that i was not satisfied with. I picked out the tennis shoes model 1004 because number one, I am an avid tennis player, two this particular model was very expensive to the tune of 115.00. I actually paid about half that price for the walking shoes that I had sent them in return. They were very generous in this exchange to say the least. These tennis shoes feel very comfortable as I have been testing them on the tennis courts in the unseasonably warm Ct temperatures that we have been experiencing here of late. I move around quite a bit on the courts so I have really had the chance to experience what they feel like running in many directions and on various types of plays that one does on the court. To date I have used them only on asphalt surfaces but I want to experience the clay courts with them soon. That is my favorite surface. The tread feels and looks very aggressive and durable. Time will decide the whole equation on these shoes but in looking them over my take is that they will probably not disappoint. I have been satisfied with most of the New Balance products that I have purchased. The looks of these shoes is awesome as mine are the combination red/black ones. I would like to come back and revisit these shoes with an update after a prolonged period of use. It has been my experience that tennis shoes that are both comfortable and durable are sometimes a hard find. I think these have those qualities.