I just spent 2 days in Zaragoza as a brief stopover between my visits to Madrid and Barcelona. I booked this hotel based on the rate (at the time I booked only USD$110/night) and its location. The hotel is new & very modern and is centrally located. Since I stayed there between Christmas & New Year's - we were among only a small handful of guests (most likely the reason for the great nightly rate) so I didn't get a full appreciation of what it is like when the property is full. The plus's were the bed (comfy) and the free internet access in the business center downstairs. The only minus was the shower (periodic hits of boiling hot water)... but I've encountered this in luxury hotels as well. I'm sure during the Expo the rates will be much higher, but I did find my visit worthwhile.

My sister and I spent one night at the Zentro and it was the best hotel we stayed at in Spain. It was just opened a week, but there were no growing pains as with other new hotels. The beds were extremely comfortable with down comforters, nice pillows and smooth sheets. I would put it on the same level as staying at a W Hotel, but not paying the W rate. I highly recommend staying here if you like a sleek, moden, comfortable hotel.