I love Ecco shoes, and this one is not only very comfortable, it also looks great.  These are very well made.  I usually wear a 46, but I bought these in a 45 because the 46 was a bit too long.  I wear a 12 US, and wear either a 45 or 46 in Eccos.  It just depends on the shoe.  These will also be tight for the first few days you wear them.  They will sort of "mold" to your feet and loosen up.  Don't give up on them too early.  Give them time to break in.