The integration works almost seamlessly and is almost instant, compared to Eloqua. However, there is still a lag time that we learned of after the implementation. Once the integration is up and running and tens of thousands of leads are being updated across both systems each hour, the promised “five minute sync time” can stretch out to a full hour-two hours.
It was relatively easy. With a dedicated SFDC admin on the project, it can be completed in an hour, and the syncing of our data (about a million records) took about two days to completely finish.