Adjustment was not enough: too tight / small for my head
(Tested at Counterstrike) The sound could not convince me too. For my taste too tinny.
The whole feel of the headset was rather cheap (cheaper than thin foam headband cushions ...)
Have now decided to use the more expensive Steel SeriesSiberia v2. This is also borderline of the size of it but great sound and good materials and workmanship.