Above average corporate hotel
I've spent an extended weekend at the Radisson Blu Aqua. Impressive architecture, not so impressive interiors, although some effort was clearly put in the design of the lobby and rooms. The lobby is unattended, and serves as an over the top waiting room. Not really my idea of a lobby, but it was comfortable and had an inviting fireplace. The bar and restaurant is across the hall should you want something to drink or eat. Regular food, decently priced, nice-ish design.
I got a somewhat small standard room, comfortable and practical, but nothing special. The sparkling floor and countertops were a bit disturbing, as they produced a "disco ball" effect on the walls. The closet, in all its shiny silver glory was way too small. Great bed though. 
Service was average throughout, with the exception of the doormen, who didn't greet or respond to greetings, and pretty much just hanged around the door.
There was a nice little executive lounge which resembled a dentists waiting room, probably the liveliest place in the property. 
To sum it up, hospitality wise the experience is as bland as you can imagine, and If the building wasn't the architectural gem it is, the entire hotel would define the word banal.