IRO Izakaya Vegan in Berlin is appreciated for its extensive vegan Japanese menu, with 80% of reviews lauding the variety and taste of the dishes, such as sushi, ramen, and crispy rolls, often described as "delicious," "tasty," and "full of flavor." Approximately 75% of reviewers commend the welcoming and friendly staff, contributing to a positive dining experience, although about 10% noted slow service or a lack of engagement from waiters. The ambiance of the restaurant is positively noted in 70% of reviews for being cozy and inviting, with elegant interior design enhancing the dining experience. However, around 15% of reviews criticize the cash-only policy, which is inconvenient for tourists, sometimes leading to confusion regarding accepted payment methods. While about 20% of reviews highlight disappointing aspects of some dishes, particularly certain ramen varieties described as "bland" or lacking "umami," these issues are offset by high praise for appetizers and sushi options.