This Spar location was our go-to during our Vienna stay. Because we rented an apartment (highly…read morerecommended BTW) versus staying in a hotel, we had a small kitchen. That meant almost daily trips to Spar for fruit, yogurt, cold cuts and beverages.
This location is fairly small, but had pretty much everything we needed. The aisles can be cramped, especially when the place fills up after school with kids buying snacks. That said, we found that prices here were generally less than the nearby Billa.
Of note - there's a good and reasonably priced wine & beer section, and their prices on the ubiquitous "Mozart candies" are way better than the boutique places in the Inner Stadt. Stock up on your candy souvenirs here and save some euors.