Reviews reveal a highly positive perception of Jellyheart's products and customer service at various outlets, notably in Changi Airport, Tampines Hub, and Clementi. Customers frequently praise the friendliness, helpfulness, and professionalism of staff like Rosie, Rozie, Nora, and Nabilah, which enhances their overall experience. The cakes and waffles are consistently described as delicious, well-presented, and of good quality, with many appreciating the variety of flavors and the refreshing nature of the jelly heart cakes. Service improvements, especially regarding operating hours and portion sizes, are noted but do not significantly detract from the overall favorable impression.