Nana's Green Tea receives mixed reviews; customers praise its authentic matcha desserts and cozy ambiance, but many express dissatisfaction with slow service, inconsistent staff friendliness, and rigid policies that hinder a positive experience. Food quality varies, with some dishes noted as delicious and satisfying, while others are seen as overpriced or mediocre. Service issues, including staff attitude and wait times, significantly impact overall impressions, leading some to feel undervalued. Despite these challenges, the cafe remains popular among matcha enthusiasts for its desserts and relaxing environment.