Travels with Hilary has published a review of El Rayo.
…The soup was good, not stellar, but good. I would have liked more punch–not heat, but punch; it veered toward bland. The fish taco was very good, but frankly, I think the Baja-style fish taco served at Loco Poco’s Tacos, in Kittery, is better (and I won’t even begin to compare it to The Mexican Restaurant in Hancock, which is the real deal). Star of the meal was the refresco. But I quibble, for Mexican-fare in Portland, it sets a new standard. Would I return, hell yes.