Reviews depict Ajisen Ramen as a place with consistently flavorful broth, tender noodles, and friendly service, maintaining a nostalgic appeal in Singapore. However, recent experiences reveal declines in food quality, increased waiting times, and variable staff professionalism, with some customers expressing disappointment over inconsistencies and hygiene concerns. Offers like free flow drinks and sides are appreciated, but service issues and perceived overpricing have impacted customer impressions. Overall, Ajisen remains a familiar dine-in option for ramen lovers, though falling standards have prompted some to seek alternatives.