My boyfriend and I stayed at Arbol de Fuego in September 2011 for a couple of days whilst visiting family in San Salvador.
It is located in a nice area, quiet and convenient to lots of things in the city, shopping, restaurants, etc. When we were there, there was construction going on next door, but as we didn't spend much time in the hotel, we didn't notice too much noise.
The hotel itself is painted all kinds of bright colors, which makes it very charming. There are common areas that are nice to sit in, though we also didn't get much use of these as we were busy with family.
The staff is quite helpful, though I wouldn't advise taking the taxi they recommend from the airport. It cost us $25 plus tip, a total rip off. If you are arriving during the day, and feel comfortable, definitely just try to pick up a regular taxi at the airport, but negotiate your fare before you depart for your destination. The taxis we took in San Salvador did not have meters so make sure you sort out your fare before you go.
The room we stayed in was small, but clean. It had a large wooden wardrobe and dresser, that when opened, let off a really musty smell into the room.
The rooms are not very private, as in many small hotels in Central America. One night, there were some people sitting in one of the common areas just around the corner from our room and playing cards and drinking. We could hear every word they said and their laughter, into the wee hours of the morning.
