Grumpy Bear receives generally positive feedback for its cozy ambiance, friendly staff, and affordable yet tasty Western cuisine, especially its signature chicken chops and pastas. Many patrons appreciate the generous portions and good service, often highlighting staff like Christina and Chih Yong for attentive care. However, some reviews mention inconsistent food quality, small portion sizes relative to pricing, and occasional service lapses. The restaurant's festive decor enhances its family-friendly vibe, making it a popular choice for casual gatherings and celebrations. Overall, it is regarded as a charming spot with room for improvement in food consistency and service.