Well Playa Cabana quickly realized they were onto something with their first location on Dupont, and wasted no time in opening another restaurant just a stone's throw down the road! Playa Cabana Hacienda, as they call it, is two floors with seating indoors and outside on a front patio (I believe they are also opening up a back patio). They've decorated in much a similar fashion to the original Playa Cabana, but slightly less rustic and more industrial.
The food came relatively quickly (although at different times) and was good, but not mind-blowing, which is what I would expect for their prices. I had the mojito, which was delicious, but again not sure it was worth the price. The menu at Hacienda is tapas-style, so the expense quickly adds up when you realize you just got one tiny taco for $6 or a tostada for $9. Their menu is pretty small right now but I'm guessing it will grow as they are open for longer.
Overall, I'll probably go here again for the convenience factor (it's essentially in my backyard and there is a serious lack of restaurants in the area) but don't let all the hype fool you.