Reviewers mostly say SaneBox reduces inbox overload by automatically sorting low-priority mail, replacing manual rules and filters, and making it easier to focus on important messages across multiple accounts and providers. Users repeatedly praise quick setup, easy training, background operation without another app, and features like SaneLater, BlackHole, digests, snoozing, and reminders. Many describe meaningful time savings and less stress. The main criticism is a notification timing flaw: some users still see push alerts for messages SaneBox moves moments later, and one found support’s workaround unconvincing.