Guests of Restaurant Bergmatten / Berg 699 commonly praise the establishment for its excellent cuisine, notably highlighting homemade desserts such as Cremeschnitte, Torte della Nonna, Linzer Torte, and Black Forest Cake. The service is described as exceptionally friendly, attentive, and entertaining, with special mentions for thoughtful gestures on occasions. The atmosphere ranges from cozy to festive, enhanced by a breathtaking view over Basel, Alsace, and the surrounding area. Guests appreciate the varied menu, quality of ingredients, and welcoming attitude, including towards dogs. Some criticism is directed at the relatively high prices, small portion sizes, occasional waiting times during busy periods, and rare shortcomings in specific dishes or service. Overall, the restaurant is considered a special place for celebrations, family gatherings, and relaxed outings.