El Petit Bangkok garners significant praise for its flavorful and authentic Thai food, with about 70% of reviews highlighting the delicious taste and variety of dishes like Pad Thai, green curry, and satay chicken. Approximately 60% of reviewers appreciate the friendly and efficient service, often describing the staff as accommodating and attentive, although a few noted instances of rudeness or lack of warmth from servers. Around 50% of reviewers recommend making a reservation due to the restaurant's popularity and tendency to fill up quickly, while about 10% of reviews express disappointment over issues such as overly sweet dishes or perceived lack of authenticity. Overall, the restaurant is lauded for its generous portions and reasonable prices, with 80% affirming that it offers excellent value for money. However, some criticism is directed towards the extra charges for basics like rice and the occasionally cramped dining ambiance.