Bad Sangria in Spain (Barcelona)

I went to Valencia and Ibiza last week, and had some pretty amazing sangria at some random cafes and Mambo Cafe (on the beach in Ibiza). However, in Barcelona, my new friends and I went to get sangria at some random tapas bars and had some terrible sangria. One was basically wine with some sort of other alcohol or wine cooler and lemon slices, the other was horrid bitter wine with maybe a tad bit of sugar. When Wanda or Venessa or I make Wanda’s recipe, it has wine, sugar, grape juice, ice, and tons of fruit. Try to check out the sangria before ordering it. Trust me.
Off to Madrid tonight, and if anyone has any sangria places to recommend, let me know.