I've had my shoes for 5 months.  I love their fit, their comfort and their appearance.  (I'm a ECCO sport sandalls and golf  and have had a pair of their street shoes as well).  These shoes were comfortable, right out of the box, something I've come to expect from ECCO.  I bought these shoes for urban walking (exploring cities while on vacation, and at home) and they have been very suitable.
HOWEVER, I estimate I have less than 100 miles of walking on these shoes and am dissappointed to see what i consider premature wear on the heal strike area of the sole.  The soles seem to wear much faster than my experience with previous ECCO shoes.  Perhaps it is the Biom engineering that focussed on comfort and use, rather than longevity--but if I'm only going to get 200-250 miles of walking as a useful shoe life, this is unacceptable.