I'm an Acapulco regular--Mayan Palace and sometimes Grand. However, I've stayed a few times at the FA in the city.
It's recently been renovated. I've always like the location...in the middle of the main bay area. The pool is probably one of the best in the city itself. I've had no problems w/ the rooms, although my experience has only been the hotel.
I love Acapulco. It's still a city, but larger than it was 20 years ago. Food runs the whole field..high-class to taco or torta stands on the streets. Shopping isn't world-class, but there are several nice malls, including one that opened up a couple of years ago. There are the beaches like Pie de la Cuesta to spend the day in the shade of palm trees w/ quaint (but good) restaurants. Then there are beach clubs the other way out toward Bonfil and Barra Vieja where red snapper is king!
The FA is close to the party scene. Even if you don't party til dawn anymore, it's still fun to go to Barbarroja and people watch. Then, of course, the city comes to life at night on the weekends w/ the world-class discos (if you're into that) such as Baby'O and Palladium.
English is spoken at the front desk. You could always make a call directly to the hotel to get an answer to your sofabed question.