La cuchara de Ruba garners significant praise for its high-quality, elaborately prepared Spanish dishes and excellent value. Approximately 88% of reviewers describe the food as "spectacular," "delicious," and "a wonder," with notable mentions for innovative tapas, exquisite entrecot, and homemade desserts. Service is largely positive, with over 70% of guests noting staff as "pleasant," "attentive," and "professional." Patrons often recommend booking due to the venue's popularity; some guests observed that it can get noisy when full. Around 12% of feedback highlights significant issues, primarily related to pricing inconsistencies between online listings and the final bill, and reports of rude management. Other concerns include unaccommodating responses to unforeseen circumstances (e.g., power outage) and occasional slow service. The restaurant's ambiance is generally found "cozy" and "intimate" with pleasant decor. However, one review expressed discomfort with pets inside, and another found the dining area somewhat cramped. The entrecot, bacalao, and homemade desserts like the brownie are particularly recommended.