Around 85–90% of reviews highly praise Mr Lu's Seafood & Burgers for its fresh, high-quality seafood (especially salmon) and juicy, flavorful burgers, with several calling them the best in Seattle or the U-District. Portions are consistently described as large or generous, prices are widely considered reasonable for the quality, and most mention the extensive menu and excellent fries (including Phoenix and waffle fries) as standout features. Customer service is often called out as exceptionally friendly, patient, and accommodating, with several anecdotes about staff going above and beyond; it's frequently described as a mom-and-pop operation with personal care. A minority (about 10%) of reviews mention negatives: complaints of "fishy" tasting salmon, dirty bathrooms, greasy burgers, or subpar ambiance, while a couple note salty food and cleanliness concerns. The venue is described as a hole-in-the-wall with a simple, diner-style atmosphere lacking polish but compensating with homemade, hot food; a few cite a need for better ventilation or updated seating.