Just walked out of the store with my 42mm SS!! Love it. I am trying to make it so i can run without a phone and just my wireless headphones watch music and a running app. Currently i use a Garmin Fenix 3 and spotify along with the wireless headphones with my 6+ in hand. I am willing to use a different running app that measures distance time and cals while the watch measures heart rate and cals. I wouldn't however like to move from spotify. (apple will probably make me due to the apple music release) However, that can be worked out also so long as apple mirrors spotify as far as my musical tastes go. I know I have a lot of variables to work through on this but it would be nice to get to a point where i can make my next run (tonite) my first apple watch run! Thanks!