Feedback on Zappysys SSIS PowerPack for migration to Dynamics 365 online?

I have used Kingswaysoft in the past for migrating data to Dynamics CRM Online but in my current project  some consultants recommend Zappysys SSIS PowerPack - https://www.zappysys.com/products/ssis-powerpack . I had never heard of it and don't have experience with it. Can anyone share their experience with Zappysys in general and more specifically when using it for migrating data to CRM Online,

Kind regards,

Joris

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