"Non-descript" is the word that comes to mind. Sitting here, I can't remember the meals I've eaten at Beso del Sol. Somewhere in there were rice and beans, good beef (although not particularly flavorful and a little on the tough side) and some decent pork. Nothing outstanding, nothing signature to recall. Just a meal that was good but perhaps more expensive than the enjoyment warranted.
A few times, we've received some grilled meats that arrived with more char than is usual in a restaurant. (Hmm... perhaps that's why the restaurant is called "kiss of the sun".) Fortunately, I happen to like that effect so I was pleasantly surprised. Unfortunately, my dinner mate was not. And still we return. My best explanation is that they're nearby and sell fajitas and are not Chili's. That and we're too lazy to make our own fajitas.
What I really enjoy there--and is probably what moves me from borderline to pro-Beso del Sol--are their tasty mango mojitos. Maybe THAT'S the kiss of the sun they're talking about...