The Philips Avent Natural Trainer Sippy Cup is frequently praised for facilitating an easy transition from bottles to cups. Many users appreciate the handles, noting they are easy for small hands to grip and promote independent drinking, with some mentioning their removability. The cup is often described as durable, high quality, and sturdy. Its easy-to-clean design, including being dishwasher safe, is a recurring positive point. The spill-proof and leak-proof features are also highlighted. Several customers express brand loyalty or preference for Philips Avent, noting the cup's compatibility with other Avent bottles and its familiar design. The spout design, often described as soft, natural, or gentle on gums, and the inclusion of different nipple options are also mentioned. Some reviewers reported negative experiences, including issues with capacity, nipple design, or their child's preference for other brands.