Proven by professionals.
Fully operational with additional tuning of sarcasm and no bullshit approval to the max level.
Recaro sports car shell P 1300 GT, in my head, added for high performance of listening without listening and tolerance of stupidity, without making an effort of slapping someone in the face.
Operational system fully upgraded, with all updates up to the date.
Beat that, OS X Yosemite.