This was not my first time in BA but first in Melia.
The booking was done easily through their web site and I also was upgraded on check in to a superb and big room on one of the hotel corners. The room was really nice, very well organized and perfect to work. The toilet was nice and fresh although the hair drier was that kind of powerless one, however the hotel has alternative hair drier that they can borrow.
The lobby is really big and nice!
The bar at the lobby is also nice and had ok price.
The big plus of this hotel was definitely the location , 1 block from my work, bars and restaurants at the same street of the hotel. Tried the Al carbon and rigolletto. Both excellents. Walking distance to galerias pacifico mall and also to Puerto Madero.
Through the hotel we booked the La Ventana tango show which I also loved.
The breakfast is a point they can definitely improve: too little to offer (just one juice for ex) and always extremely crowded .
If the hotel keeps the same price level my next time in BA will be certainly be on Melia.