There are many touts in the Plaza des Armes and this resto has a balcony location, but once they get you inside, you will wait, wait, wait for any kind of service or food. We waited for a table by the windows and there were only a few tables still occupied when we sat down. Nonetheless, the service was non-existant. We waited and waited for someone to take our order and one hour later, still no food, we paid for our drinks and left.
There is a real problem of lack of organization in the restos around the main square. They have lots of people working there but each one has a specialized job and there is no multitasking.