We stayed for a week in a 'deluxe apartment' - ie a standard apartment - on the 15th floor of this block. The good bits are: stunning views from this 'apartment in the sky', right in the heart of Rotterdam with every convenience on the doorstep; good quality fittings and furnishings; masses of space; supremely comfortable beds (probably the best in Rotterdam!); soundproofing. The bad bits are: foul smelling bathroom; poor or non-working air conditioning (cooling); indifferent cleaning - the main surfaces are spotless but there was muck, dust and gunk a plenty behind doors, around the furniture and along the skirtings and the windows were grubby with the fingermarks of (presumably) tiny tots! We cleaned the apartment ourselves before feeling comfortable enough to inhabit it for a week. This accommodation will very quickly become shabby and cheap looking (it's only been opened since last September) if more attention isn't paid to the small details of thorough cleaning between guest stays. No-one wants to live in someone else's mess! Other nuisances, but probably allowable ones, included no proper reception for weekend arrivals (we had to telephone a check in assistant on arrival at our own expense) and the continuing building works in the property. These apartments are a fabulous idea and much needed in Rotterdam, but the jury's out on this one and we'll see how things develop before booking again.