Barely functional. Browsing and ordering features work as expected, but God help you if you do anything other than those 2 things. You can't cancel orders (despite having a "cancel order" button), no in-app support or contact-us feature ("help" options are to rate app or call store), uses its own keyboard (preventing use of s-pen and Android keyboard features), and Androis UI's "back" button doesn't work. Use the website instead. Samsung Note 20 Ultra and Samsung Galaxy Tab S7 Plus user.