Can you please share your experience in implementing / upgrading the Primavera EPPM R8.3?

Hi,

In our company various versions (V7, R8.1 and R8.3) of Primavera being used in various locations. To bring all the location to a common platform, management has decided to implement  / upgrade Primavera EPPM P6 R8.3 and also planned to integrate Primavera P6 R8.3 EPPM with Oracle (EBS) Projects application . Hence, If any of you implemented Primavera P6 EPPM R8.3 or upgraded the earlier versions to Primavera P6 R8.3. Please share your ideas and also the pros and cons of implementing R 8.3 EPPM. For your information we are going to have SQL database since all the existing databases are in SQL.

Please share your ideas and experiences.