This is a small data centre with around 500 square metres of space. The facility is primarily intended for ISPs and other organisations that need a lot of connectivity.
To give you a bit of history, an institute that does researches subatomic physics (Nikhef) collaborated with an organisation that provides ICT services to Universities and other educational institutions (Vancis) to host the Amsterdam Internet Exchange (AMS-IX).
However, hosting here isn't restricted to members of AMS-IX.
With some commercial data centres, you're paying for a really fancy hosting environment, a lot of resilience and a lot of security. Here, you're paying for the location: a key science park where much of Amsterdam's Internet peering takes place.