End-User Experience when Switching from "Password Sync" to "Pass-through + Seamless-SSO"?

[Daniel Smith]

We're currently using the simple password sync feature with AADConnect.

If we turn on "Pass-through Authentication" as well as "Seamless-SSO", what are the immediate end-user impacts? What will users experience when:

• They launch Outlook/Skype/Office applications?
• They logon to OWA/Office Web Apps?
• They're already using ActiveSync on their smart-devices? 
• They're already using the various App-store applications for iOS or Android?
• ...and when they next change their Windows password on our local domain?

Thanks in advance!

[#2 · Accepted solution]

Worst case - they have to enter password. Best case - they never notice login prompts anymore (well at least on a domain-joined machine).

[#3]

Thank you, this was very helpful. :)