I spent a few weeks at the JW Quito: embassy rate, decent but nothing special room, great view of Pichincha. Concierge service was magnificent; manager at the time was a German gent, who epitomized Teutonic efficiency and order. He was often seen in the lobby.
The Sunday brunch was an astounding presentation. The pastry chef was a very pleasant young lady; I didn't sample the wares, but if they tasted as good as they looked....
FWIW, a high-level guvvie chose this location during my stay. My daily attire by requirement was less than business casual, and I felt a slob not wearing a suit in the lobby. I was never treated less, and send most of my meager business to Marriott.