Looks like the same "eye candy" as having a data-center inside Paris overall. To me, it looks a lot like a "fun project" for them, a bit useless though: even-t

Looks like the same "eye candy" as having a data-center inside Paris overall. To me, it looks a lot like a "fun project" for them, a bit useless though: even-though it has quite reinforced walls, it's very small for a DC, it required a huge lot of work to make it ready for servers, the building itself must have cost a huge amount compared to a location in an industrial zone, it's not the best place in a city to put equipment like generators, there is no space for expansion, connectivity for networking and power with multiple source must have been a big challenge due to constrained access, ... Finally, knowing quite well how the Parisian metro gets infiltrations all the time in the stations, I find it crazy of them to take it as reference: if their situation is comparable, they are in for a lot of trouble over time.