Oracle Internet Directory experience?

We are definitely going to be implementing an external authentication mechanism in a later release of our databases. The target is netegrity. What I'm wondering is about experience with OID. Is it solid? Is there integration from it to other LDAP stores, or do I need to write it? Is OID actually an enterprise solution in that we could replace a netegrity with it? Not sure if Cognos has integration and our BI guy doesn't know at the moment, but I'm going to ask Cognos.

Any experience with this from anybody?

I'm also seeing that there is limited success in integrating OID with Active Directory. Anybody have more thoughts on that?

-- 
Galen deForest Boyer