The problem with third party 3D systems is two-fold : first, when the main 3D system is updated, you have to hope that the person who does the wrapper updates it in a timely manner, and doesn't start adding extra bugs.
Secondly, you dont always get the full range of goodies in the engine - the process on some wrappers seems slow, and may not be fully tested.
Secondly, you dont always get the full range of goodies in the engine - the process on some wrappers seems slow, and may not be fully tested.