Here's a list of some of the spots I visited with various parts of the April 15 crew. I'm happy to follow up with details in the Argentina forum if desired.

• Jardín Botánico, Zoologico De Palermo, Plaza Italia, Plaza Inmigrantes de Armenia: Lots of parks and plazas. The zoo's now a green space with capybaras around.
• Lucio Pizza y Pasta, Parrilla El Pensador, Chori, Doña Tota, Antiche Tentazioni: Croissants, steaks/blood sausage, sausage sandwiches, grilled cheese, ice cream. Tonnes of shops and sights around Palermo in general. Street markets on weekends.
• Fervor, Parrilla La Brigada: Skip Fervor. Brigada had good steaks, interesting decor.