Customers say this shaker cup features eye-catching colors and a transparent design that lets them monitor liquid levels. Some users report issues with leaking lids and loose spouts after repeated use. Many reviews mention its compact size, with mixed opinions - some find it perfectly practical while others prefer larger options. The cup effectively mixes drinks according to most users. Reviews frequently highlight the sturdy construction and easy cleaning process. Several note receiving it as a promotional item at a discounted price.