This place has such extremes in Yelp ratings so far. In the light of those, here's my experience:
SERVICE: the place was mostly empty, but service was solid; timely; not effusively ingratiating, but perfectly decent
PUPUSAS et. al.: Enjoyable revueltos pupusa; the masa did not have the rich corn fragrance that is the hallmark of great pupusas to me, and the cheese was a bit odd; but the nice crunch outside and lovely goop inside was fun to eat. Had a chipilin tamale and it was all right. The slaw that comes with the pupusa was light on flavor, but the weak vinegary/sweet squeeze bottle sauce helped.
SALSA: I thought the little dish of salsa served with the chips was a highlight - - it is a light, thin concoction, but with onion and cilantro that was so fragrant, I was drinking it out of the cup.
OVERALL: It was a nice bite to eat; I'll keep my eyes open for Vegas pupusas that are more aromatic though.