Is it just me... or was anyone else expecting to see a "data center" when looking at these pics?  All I see is someone's spare room or even living room?   It doesn't really bother me too much as providing it doesn't burn down it will still produce the same hash output...   But, calling it a data center makes it seem like it is in a building designed for computers with racks, secure access (theft resistance?), fire suppressant systems, proper power backups, resilient internet connections, all humidity and climate controlled... you get the idea.
To me it just looks like a decent setup in someone's house, flat or apartment.  (I like the giant fans behind each wire rack!, were they turned on?  Or just there in case of air-con failure?)