I like very well, that the shoe is very light and I even in summer never sweat in the shoes (the shoe does not smell unpleasant). However, the lightness has a small disadvantage: Missing mass causes less insulation (building a house is so similar). This my feet in the winter or during long air travel are quickly cold. Therefore I wear then always two pairs of socks, but still find the shoes in plenty. Regular cleaning of the shoe lasts longer than a year, however, the shoe has to be exchanged at the latest, when the sole has expired. Then you have really fast times water in the shoe. An exchange of the sole is hoffnugslos according to my shoemaker - no way. But I can live with.
EDIT: Did the shoe now only brought out of the closet and worn. Although my shoe size has not changed, the new model sits significantly worse than its predecessors (I had the same shoe even more often). This time the shoe is a disaster. The build quality has diminished, and the shoe no longer sits so comfortably. The next shoe to buy back in the store and not guaranteed by Seibel. One thing is certain!