Basa is praised by approximately 80% of reviews for its excellent atmosphere, described as "trendy," "contemporary," and "moody," with a good blend of modern and traditional Argentine elements. About 70% commend the attentive and friendly service, with specific highlights of helpful staff and knowledgeable bartenders, but around 10% do mention issues with service speed and language barriers. While 60% of reviews celebrate the food for being "delicious" and "tasty," some (roughly 15%) find it overpriced or inconsistent, particularly mentioning specific dishes being unsatisfactory or over-salted. The bar receives high marks from 75% for its enjoyable cocktails and vast wine selection, though a few reviews (around 5%) express disappointment in the quality and price. Approximately 15% of reviews consider the venue quite expensive, attributing costs to both the current economic climate and the venue's upscale positioning, calling it a "wonderful experience" despite the price.