The Hotel is nice, but not really comfortable to move all the time to the city center, better to look for a more central solution with the same level of price, at least the Metro is very close and easy to use.
Our staying was quite good even if we were expecting an automatic change of the towels at least every 2 days, for the big ones it never happened during our entire (5 days) stay, I agree on the fact to be sustainable, but let's find a compromise, next time we will ask for it. :)
We had no opportunity to enjoy the 9th floor bar, they told us it was close, at least the 31st of December, pity!
We tried the restaurant once, the food was good the service below average.