Cognos Analytics Upgrade

[sunosoft]

ok guys. Now its my turn to upgrade from Cognos 10.2 to CA. :) I am excited.

I am going through documents and analysing the stuff. Meanwhile would like to hear from you people if you have successfully upgraded from Cognos 10.2 to CA and everything looks fine ? Are users happy ? Are users able to use existing reports as they were using in Cognos 10.2 ?

Also would like to hear some advise from you before proceeding.

Its straight forward upgrade for me, no change in authentication source so no need to worry about my folders.

I was having doubts on upgrade of transformer and existing cube data sources ? How should I go here ?