I have been reading about Microsoft 365 migration projects recently and noticed that DRS Softech Email Migration Tool  supports direct Office 365 migration through both PST and IMAP workflows.
What interested me most is the support for Modern Authentication and Client Secret authentication methods. The software also offers both Admin Login and Single Login options, which appears useful for organizations that need either tenant-wide migrations or individual mailbox transfers.
I also came across a case study where an organization reportedly migrated hundreds of PST files and dozens of IMAP accounts using bulk processing, folder mapping, and duplicate removal features. Having real-time task monitoring and detailed migration reports could provide administrators with better visibility throughout the migration process.
For anyone who has used this tool during a Microsoft 365 migration, how reliable was the authentication and mailbox transfer process?