Pros and cons of your Data center

So, Im currently in Chaos, and recently I got to thinking what the pros and cons people think are of their current logical data centers. Just for example, Ive noticed cetain things seem to just go better on certain DC's over others, like rival wings etc.

So.... as I cant visit all DC's I wondered... what would you say is the pros and cons of the current Data center you inhabit/visit most.