While it may seem sketchy, this place is amazing. My boyfriend and I went here for a date after I had raved about it to him, and he loved it.
Obviously you have to get the pupusas. They're so good, but I wouldn't go with the chicken. I had it twice and it just didn't compare to the steak. I always get the crema and beans on the side, but it's up to you. WARNING if you are lactose intolerant, like I am, don't eat too many of these bad boys. They are stuffed full of delicious gooey cheese and as delicious as it is, it doesn't sit well.
Other than that, I would say the service is a bit slow, but only because they make they food to order, so it's always fresh. I seriously love this place though.
Don't judge it by its cover! It's awesome!