Pop Up Discount by MITS

The reviews for this Shopify App are overwhelmingly positive, with users praising its customization options, ease of use, and professional appearance. Many users appreciate the ability to customize almost every aspect of the pop-up window, making it look neat and professional. The app is described as great, nice, easy to use, and effective by multiple reviewers. Some users also highlight the excellent customer support provided by the app developers. However, there are a few minor issues mentioned, such as the limited capabilities regarding custom CSS and an annoying review prompt in the theme editor.