The reviews of Old Street Bak Kut Teh reveal a generally positive impression of its flavorful, peppery soups and tender meats, with many patrons appreciating the quick, friendly service and free soup refills. However, there are consistent concerns about deteriorating food quality, inconsistent service, small portion sizes relative to prices, and hygiene issues. Some customers express disappointment with tough meat, bland or watery broth, and unfriendly or unprofessional staff. Despite these criticisms, repeated visits and high ratings for specific dishes highlight the restaurant's reputation as a decent, affordable option for bak kut teh enthusiasts, with experience largely dependent on the specific outlet and time.