Bummer!  First off, I'm a HUGE ASICS fan.  I have 4 different colors of their Gel Neo33 shoes and 2 different colors of the Gel Blur33.  And I can't rave enough about them!  When I saw these GEL-180's on sale I was pumped!  So much so I even ordered an exact woman's pair for the Wifey.  She loves hers, but mine have a HUGE issue.  The right shoe has some kind of hard plastic bump in the right shoe heal.  I thought it was just me and I needed to wear them in but as the days grew it started hurting my heal more and more!  So I went back to a few of my other shoes and wore them just to make sure I wasn't growing something in my heal, and they were comfy and fine.  I tried the Gel-180's on again and still some random hard plastic bump in the right shoe heal.  I bought some gel heal inserts at the my local grocery store hoping they'd make the bump go away but I can STILL feel it through the shoe. :(  Alas it has been 3 weeks since I bought these shoes and I'm not sure I can return them.  All I can say is that ASICS must have some quality control issues when it comes to these shoes.  And maybe that is why I got a good deal on them.  Like I said, bummed!  Perhaps steer clear of this model.