I think this might be my new favourite SPG hotel in Paris.
I'm Plat and both times I've stayed I've been upgraded to one of the suites on the 6th floor. They're quirky, all different shapes and layouts, and not for you if you don't like stripey wallpaper, but I really like them.
On my most recent visit I was informed the Plat benefit was now full breakfast AND 500 points. Due to time constraints I didn't have breakfast so can't 100% confirm this, but if true it's another plus...