The shopping center is not bad for Cuba. There are restaurants, a coffee shop with good drinks. Shops, including those with rum at an average price. You can buy a coconut for $2. There is not much choice of clothes. But we must remember that this is Cuba and many people live below the poverty line here...
A good selection of souvenirs. The coffee shop is also good. By the way, there is a public beach behind the shopping center. But some shops don't know how they work, and I suspect they don't work at all. You can get there by bus.
For Varadero, this is a super shopping complex. But in fact, I remembered stores from the USSR, when one product occupied several rows or shelves. By the way, the prices are quite affordable for rum and so on ... The bus passes often, so you can easily get here from any hotel.