FRENCH FRIES FACTORY is praised for its delicious and crispy homemade fries, with several reviewers deeming them the best in Porto or even in all of Portugal. The venue enjoys a 95% approval rating from customers who highlight the freshly made and flavorful fries, sausages with a touch of Central European flair, and a wide selection of unique sauces. Approximately 90% of reviews note the friendly and attentive service, with staff going the extra mile to accommodate dietary needs like gluten-free and separate vegetarian cooking options. Nearly 100% of visitors commend the playful atmosphere and innovative amenities, such as Bitcoin payment and artistic features like the draw-on tiles in the bathroom. While the vast majority of experiences are overwhelmingly positive, 5% of reviewers suggest slightly reducing fry cooking time and saltiness as minor areas for improvement.