I stayed in the hotel for two nights. The room was spotless clean. Nice, simple Japanese design, but also a bit austere and not particularly cosy. The reception staff was very nice. The breakfast buffet was cleared away very promptly (i.e. a bit too promptly for late-comers).
In the nights I was there, Brussels was fully booked because of a trade fair and all hotels had significantly raised there prices. Having said this, it's still the case that the price for those nights was much too high for the standard of the hotel.