ramon G.
Google
As I'm reading all of these reviews only 1 is close the fact of what this place is,
It's a small little shop in old San Juan, with an art studio on the second floor and serves as the entrance to a restaurant, the name la calle mall is misleading, it's not what you are expecting to have an indoor plaza type place where you walk around indoors and have the shops all around. The owner confirmed that's the way it was back in 1992.
Most of these reviews are for the whole area of a couple of square blocks with shops and bars and restaurants, most of them don't have listings on Google maps, and mostly all of them are way over priced in my opinion, they take advantage of the tourist that come here. But that's how it is in most tourist destinations. Do your research.