Really comfortable.  Heal is slightly high and that is what I was looking for. The front of the shoe has quality padding for running as well.  I am using these for a portion of my training and they are good.  Not sure I would use these for days of race and longer distance however I am not sure and will try to update this post once I take a 10+ mile run.  I do run on pavement mostly and these have held up well so far!