Omar Khayyam's food quality is a consistent highlight in customer feedback, with dishes described as delicious, flavoursome, and authentically prepared. The Pashwari Naan, in particular, is singled out for its excellence, which could be indicative of the restaurant's attention to detail in preparing even the more commonplace items. Service is frequently characterized as professional, with a warm welcome and attentive staff contributing to a positive dining atmosphere. The value for money is perceived well, especially with mentions of the lunch special being inexpensive. Additionally, the restaurant's ability to accommodate groups and provide a diverse range of options, including vegetarian and halal choices, is well-received. The personal touches, such as recognition of returning customers after many years, speak to a commendable level of customer care.