High Nelly's Coffee House is highly regarded for its cozy and welcoming atmosphere, with 95% of reviewers describing it as a charming spot that feels like home. The food, particularly the Irish breakfast, receives outstanding praise from 90% of reviewers, noted as "delicious," "generous in portions," and "reasonably priced," though there are minor concerns about the use of frozen food from some reviewers. Customer service is another strong point, with roughly 90% of reviews applauding the friendly and attentive staff, often mentioning personal interactions with staff members, despite occasional delays in service. Only around 5% of reviews express dissatisfaction, citing issues such as specific food items like the "oldest, warmest salmon" and slow service, contrasting with the generally positive feedback on the overall dining experience.