We just returned from a stay at Axel BA and found the accommodations to be top notch and the staff to be helpful and knowledgeable, with a great sense of humor. This property just opened in October 2007, and after working out initial challenges referred to by previous comments posted, it was in a great state during out visit this past week.
The design is very modern and at times borders on the absurd - exactly the kind of design that is fun to visit. I have stayed at many boutique and Tablet hotels around the world and Axel ranks at the most modern and severe in its design. If you like minimal than this is a good choice for you. The beds are well appointed and the common areas of the hotel are immaculate and very chic.
The Axel's neighborhood of Montserrat, near San Telmo, has some great restaurants and is really coming along in what it has to offer tourists. It is a great way to see the city and its colonial roots and is really good for those that like to bargain hunt and for those that want to get a feel for what it is like to live in a real urban neighborhood of Buenos Aires. The close proximity to Avenida Defensa antique shopping was a big plus - there were also many unique and edgy designer and consignment shops to explore. That being said, if you would like a more polished and commercial view on the city I would recommend Palermo's Viejo, Hollywood, or Soho.
As for it being a gay hotel, it was really great to have a LGBT centered hub to come back to in BA. Sometimes it was hard to plug into the gay community otherwise and my partner and I were thankful to connect with so many other travelers from around the world and to have an inside track to all the goings on via the friendly staff. There is also a great night life scene on site at the pool and sky bars of Axel.
I highly recommend this hotel.













