Other than upgrades, I don't see why you wouldn't get the other benefits on an award ticket. The T&C's require you be on a revenue ticket (other than E fare) to be upgrade eligible --
"SPG Platinum members are eligible for day of departure Complimentary First Class and Delta Comfort+™ Upgrades on paid tickets."
Here are the full T&C's --
https://www.delta.com/content/www/en...onditions.html