Mobile banking is a service provided by a bank to facilitate customers in conducting online transactions, one of which is Livin' by Mandiri. Livin' by Mandiri presents a digital ecosystem through the Livin' Sukha feature. Sukha is a service that can fulfill customers' lifestyle needs. In the Sukha feature, transactions can be made without the need for registration or login, providing payment promos, automatically generating payment amounts to avoid payment errors, collaborating with curated partners, and serving national events that have been and will be held in the future. To improve the quality of the Sukha feature, evaluation and assessment are needed, but until now, the Sukha feature has never been analyzed for its performance. Whether its performance is satisfactory to customers or still lacking. The PIECES method is one of the methods that can be used to analyze the level of customer/user satisfaction. The results of this research show that from the 6 PIECES variables (Performance, Information, Economy, Control, Efficiency, and Service), all of these variables have a satisfactory level of customer satisfaction.