My booking at another hotel was incorrect, and I ended up staying at Hotel Muniz for 1 night. The reception and lobby area had a colonial charm to them. The bathroom in the hotel room appeared to have been recently renovated, and was therefore in good condition. The location of the hotel is very good, near to shops and the central square. The beds were a bit worn, soft and lumpy. The breakfast was the usual fare for cheaper hotels in Argentina; medialunas and dulce de leche; but thankfully the medialunas were plentiful.
My biggest complaint about the Hotel Muniz was that Wifi does not work for any iOS devices. I could not connect, and therefore asked for help, and was told that, "it does not work for Apple devices, and they don't know why".

As soon as I walked in the lobby I was charmed by this hotel. Beautiful decor of the first decades of the 20th century: wood, gold and marble.
Because of the hot weather we took a room with airco and got room on the second floor with a balcony on the street side and very high ceilings. Yes, there was street noise but standing on the balcony with the stone lions looking down on you, certainly made up for this.
Behind the hotel is a big parking space that guests can use for an additional fee.

Breakfast was the usual affair in a business hotel.
The staff was very friendly and helpful.

We stayed here December 2011. The rooms are inadequate, have not been updated for years, no air conditioning. Good parking in back, free WiFi in room although the connection was slow. Very nice staff, and nice lobby. Good area for walking around, 1 block from central plaza.