Advantages of Centralized SLD

Hello All,

We are proposing to one of our clients to make our SLD centralized. To do this I would like to know:

What are the advantages of the centralized SLD?

Is it recommended by SAP ?

If there are any drawbacks, what are they?

We are using SAP PI 7.31 dual stack for our client. May be if anyone has a some documents related to same it would be of a great use to us.

Many thanks in advance for all the help and support.

Regards,

Nitin