Original review:  I have had many pairs of Merrell Siren Sport shoes, which are built on the same sole but have thicker material for the uppers because they are a little bit more of a hiking shoe.  I really have have only chosen to wear them for years because they are the brand and style of shoe that  fits my feet perfectly.  The price on the Siren Edge was great, so since the sole was the same, I gave them a shot.  WOW...the uppers on these are fantastic.  So comfortable and pliable.  Really bends with my foot.  I love these.

UPDATE:  I have updated my rating to 3 stars instead of 5.  I have been wearing these for about 1 week, almost daily.  Within the first week it became apparent that the top back of the shoe was going to cave in pretty quickly.  And I have always loosened the laces to put them on.  But now, three weeks in, the slumping back is something I feel always, even though I take the time to straighten it out.  In addition, one of the shoes puts pressure RIGHT on the end of my big toe nail.  After a couple of hours, that is enough to begin to be more than just irritating.  I wish I had just gone ahead and purchased the hiking version with the sturdier exterior.