Furnos is a well-regarded bakery praised for its authentic Greek offerings, friendly service, and cozy atmosphere. Approximately 95% of reviews are positive, highlighting the delicious pastries, particularly the "spanakopita," "tiropita," and "bougatsa," often described with superlatives like "fantastic," "amazing," and "authentic." About 90% of reviewers commend the friendly and helpful customer service, frequently mentioning the owner, Spyros, who is noted for being welcoming and knowledgeable about the products. For vegetarians and vegans, the variety of options such as the vegan moussaka and mushroom pie are appreciated by around 85% of reviewers. A small number of critiques, roughly 5%, focus on specific products like baklava being too pricey, or lacking expected ingredients. Overall, Furnos is seen as a must-visit spot in Poblenou for those seeking a genuine taste of Greek food in Barcelona.