Collage Cocktail Bar is acclaimed for its exceptional cocktails, atmosphere, and knowledgeable staff, with around 90% of reviews rating it positively. Approximately 85% of reviewers describe the drinks as "unique," "creative," and "best ever," with notable mentions for the Mel i Mato and "Remember the Beast," while praising their complexity and execution. About 80% appreciate the bar's cozy and attractive interior, often noting the relaxed vibe and friendly, attentive bartenders who enhance the experience with engaging cocktail stories. However, 5% of reviewers noted issues with billing, unhappy with the inability to split bills, and occasionally felt unwelcome due to perceived standoffish staff. Facilities such as an upstairs seating area and specialized classes received positive attention, though mention of damp smells and drafty conditions appeared in a few reviews. Overall, Collage Cocktail Bar is generally regarded as a must-visit for cocktail enthusiasts seeking a distinct and intimate experience in Barcelona.