What to test after each FSMO role transfer to different DC/GC ?

People,

I'm about to perform FSMO role transfer from my old Windows Server 2003 Physical box into the 2012 R2 and some 2008 R2.

The steps will be using the official steps from Microsoft:
https://technet.microsoft.com/en-us/library/cc738685(v=ws.10).aspx 

But what do I need to test for each of the FSMO role after the trasnfer to the new DC/GC ?

is this below testing enough:

Domain Controller Diagnostic Utility
dcdiag /v /c /d > C:\TEMP\dcdiag.txt
AD Replication Diagnostic Utility
     repadmin /showrepl
      repadmin /replsum
      repadmin /queue
Show the current FSMO role
     netdom query fsmo