Hokay so I bought these shoes after a lot of research.  I work out 6 days a week for an hour each day, switching between the treadmill and the elliptical.  I probably do 6-7 miles/day.  I've had these shoes for 3 days now, and I've had no blisters or discomfort.  They're very firm and offer good support, as I have high arches.  The heel is a little higher than what I'm used to, but this is my first pair of "real" running shoes, so I'll get used to it.  The only thing--I was deliberating between getting a 7B (regular) or a 7C/D (slightly wider), and I think I would have done better to chose the C/D.  Running shoes in general narrow at the front, and had I taken that into account, I think the wider would have been a more comfortable fit for my foot.  That said, I love these shoes and would highly recommend them to someone who, like me, is just starting out running and wants a solid pair of shoes.