The Dream Big Lash Extending 7 in 1 Mascara by Pacifica is highly recommended by Katie in their video review. Katie praises the extendable wand feature, which allows for easy application and customization. The mascara is described as extremely buildable, providing impressive results. Katie demonstrates how the product can be layered to achieve fuller lashes. Overall, the mascara is deemed superior to other products Katie has tried. While the review does not mention any drawbacks, it is important to note that individual experiences may vary. The Dream Big Lash Extending 7 in 1 Mascara by Pacifica is a must-try for those seeking a mascara that delivers exceptional results.