pretty much everything, from the color, the way they look in terms of the special treament of the fabric, to the fitting was all a disappointment for me. when i put them on, i felt like i was wearing some old man's dirty pants that had been tossed in the basement for ages...literally haha. they didn't feel or look expensive (like almost $400 expensive), instead they made me look sloppy. i mean i get it, this season is Texture Explosure, Diesel is trying to create hybrids of denim with herringbone tweed, prince of wales, pinstripe and other woven patterns. And i'm trying to be open minded, but these just didn't work for me. Diesel might just went a little to far with these IMO. maybe it's just this pair, i might like other ones later. i think the 808z is like you either like it or hate it. and in my case, i don't want to say i hate it, but it just don't work for me.
please do not let me discourage anyone from getting them though..this is just how i personally feel about them.