Just ordered mine so will hopefully arrive Tuesday.
Drstuf - you mentioned you mounted it with an Ergotron mount. I have my current 27" monitor mounted with one but it only goes up to VESA 100x100 and 9Kg. According to Iiyama this needs a 200x400 mount and is just over 12Kg. I like my current mount so would be looking to get another - which model did you get?
The vesa holes on the iiyama are 200x200 the same as the philips, i had to buy one of the cheap square convertion plates from an auction site
Its an ergotron neo-flex widescreen stand, they are 100 x 100 mount as standard