Reviews reflect predominantly negative experiences with MOS Burger, highlighting issues with slow service, limited menu options, and hygiene concerns. Multiple patrons express frustration over long wait times, sometimes exceeding 30 minutes, even during non-peak hours. Service quality varies, with some staff being friendly while others display rudeness or unprofessional behavior. Food quality appears inconsistent; some enjoy the fish burger and Wagyu offerings, but others report dryness and missing items. The new outlet’s interior design and ordering process receive mixed feedback, with some missing the previous ambiance and questioning the reliance on machines for ordering. Hygiene practices and customer service standards are areas of concern overall.