IBM Lift is the most effective tool for migrating mass data from different on-premises applications into the cloud with high speed. I would recommend it since it offers two data migration options; Disk transfer service and cloud mass data migration, which all work perfectly well.
As any other archiving solution, it is very well suited for environments with a large footprint of unstructured data (CIFS / NFS shares for user data) with a large amount of unused/old files and a need to keep those unused files for long term. In our scenario, due to some legal and contractual constraints we need to keep these files for 15 years. Archiving is a good choice to move the unused files to a cheaper storage tier, both on-prem or cloud.
Even though it can be hectic to migrate data into the cloud with IBM Lift, the support team is free and highly knowledgeable. Also, IBM Lift is well documented in detail explaining all methods to migrate data easily.
Before Implementing IBM Lift at SquareTrade, we were using AWS Database Migration Service, which was not only expensive but didn’t offer automatic rapid recovery from common issues during data migration.
We have used Veritas Enterprise Vault in the past, and besides its being a well-known player on the data archiving market, their tool is far more complex to implement, to manage and to keep working. Komprise is very robust and also very easy to implement, as most part of the job is done on Komprise side. The management console is delivered through a public URL as a SaaS platform. You only need to deploy a few VMs for scan/archiving/user access, which they call "Observer VMs." Komprise also doesn't uses Stub files, which is a poor implementation adopted by the competitor for file access. We had a lot of issues in the past with stub files. Komprise has implemented 'bread crumbs', which are CIFS symlinks to the files on the Observer. It is a very good implementation and it works really well.