EndNote for multiple users - how good is EndNote Web?

We are currently using RefMan as we frequently have multiple users editing a single library simultanously. We are plannning to move over to EndNote as RefMan is being discontinued, but it would seem that EndNote does not support the simultaneous read-write access that we need.

As I understand it, one option would be to have two copies of our library on a network drive - one set to read-only and one set to read-write. We would then need to sync these at regular intervals.

As an alternative we could share the library through EndNote Web.

Does anyone have any experience in setting up multi-user access to EndNote? Which method works best for you? Or is there a better way of doing this?