I see in the FAQ that:

"Suite Night Upgrades cannot be combined with:
- Upgrades subject to availability awarded to Gold status and higher."

Does anybody have success getting further upgrades with a SNU?

I have a booking with Fairmont Seoul using SNU and hoping to get something slightly better than their base suite. So I'm curious how strict people have found Accor in this regard.

I'm Diamond status if that makes a difference.