We're just completing a one-night stay at the Hilton Buenos Aires in the Puerto Madero District, our fourth stay at this property in the past three years. In 2009 this was one of our favorite Hiltons. Sadly, our stay in 2010 was quite disappointing, and fellow FTers who had stayed here expressed similar opinions. For us it had pretty well gone from "first to worst." The Executive Lounge was being renovated, and the temporary lounge in the "presidential suite" one floor up was barely adequate. More important, the food and beverage offerings had declined significantly and the employees didn't seem to be very friendly or helpful. The fact that the concierge desk remained on the eighth floor, a floor below the temporary lounge,didn't help with the communications either. A concierge even told us she felt "isolated." Still, we had a Q3 promotion to utilize and we thought we'd give it one more try before saying Adios to this property. We're pleased to find it greatly improved since our previous visit. A room wasn't yet available on our noon arrival. The front-desk clerk apologized and explained the hotel had been full the previous night. She gave us a voucher for a complimentary wine or beer in the lobby wine bar, offered us the use of showers in the fitness area, and of course immediate Executive Lounge access. The renovated lounge is very pleasant, and includes four free computers. The evening appetizer offerings were much more appealing and there's a fairly wide range of alcohol choices - we stuck with the Malbec. Breakfast this morning wasn't spectacular, but it was certainly adequate. We arrived at 9:30 a.m. and were interested to see a supervisor enter a little later to thoroughly inspect the buffet and the rest of the lounge, directing one employee to replenish the butter patties, and clearly expressing his displeasure to another about the empty bacon plate. As he swept out, the body language of the employees made it clear that the management at this property is making a significant effort to raise their standards. This is anecdotal and based only on a one-night stay, but at this point we'd look forward to another stay at this property, which was far from the case last year.