Hey EMR-
I stayed at the Soho location for a few days while waiting to move into my apartment a few blocks away in January.
The staff was great: very helpful and willing to go out of their way to make things easy for me (when i didn't know the city or the language well).
The room was very nice, nothing super, but nice. There is a beautiful rooftop terrace that I also enjoyed. I did not dine in the restaurant during lunch or dinner so I can't comment on that but the complementary breakfast is very good as well and exceeds argentine breakfast standards.
Also I love that part of Guatemala, it's full of trees and relatively quiet.
No complaints- suerte!