The only complaint that I would make is that all of the reception staff were very reserved and very cold. Because the hotel is a very small boutique hotel, in my view this created a very negative and unpleasant vibe around the place. Initially I just put it down to it being a difficult time in Argentina right now. However, I went to the Four Seasons Hotel next door for lunch one day and I just could not get over how the different the staff were there - for example: they were beyond helpful, went out of their way to make you feel comfortable and taken care of, never made you feel like you were inconveniencing them in any way, and were always very warm and smiled, they always looked happy to see you - this even includes the staff opening the doors to let you into the hotel itself....and when I think things through the same is also true of all of the tour guides that I met on the tours I went on. Obviously these things are down to personal taste, but a warm and friendly service means everything to me when travelling as it affects my trip overall.... so I would never stay at the Serena hotel again and recommend that this hotel is avoided if this is something that is important to you too.