As far as Mexican grocery stores in the area, Reyna is one of the best, however with the large cavet that this is based on a Pittsburgh scale (I was reminded all too well of this on a recent trip back to Chicago, when we stopped by Cermak). I recently stopped by for their street tacos though and was underwhelmed. Likely because the ones at Las Palmas in Oakland are so good. The portion size of the tacos was incredibly small for the price, like seriously three bites each for a little over 2 bucks per taco. I had three and was still quite hungry. The flavors were pretty good though, but even in the taste category, I'd give the nod to Las Palmas. It is nice that they have a few outdoor picnic benches to sit at, though these can fill up pretty quick on a busy day.