I think it depends on what you plan to use it for and the types of resources you have/plan to have. If you are only going to integrate NetSuite to SFDC, then, maybe Celio is the right answer. But, the Boomi platform is extensive. And, it is truly a iPaaS. Integrations, EDI, MDM, API management. In my prior life, we used Boomi for EDI and integration to multiple systems. We had semi-technical resources but didn't require hard core development. Their PS is also really good if you need to augment your team. Also, the learning platform is free.