I was generously offered some paper by Hahnemühle to test with Platinum Palladium. I started out using Bergger Cot 320, then Arches Platine, which I found very similar with my very basic tests. Both render nice tonalities, but I found trying to decipher a wet print to dry to be difficult. Experience over time I am sure would solve that. I've made beautiful prints with both papers, but I am still looking for a base to get to consistency.
The Hahnemühle Platinum coats just fine and used the same amount of solution as the above. However, I think the spread goes on easier. I had no problem getting an even coat, at the edges as well. Exposure wise, I started with 8 minutes as with the Cot 320 and Platine. The nice difference with the Platinum is that I get more latitude at both ends. Slightly darker blacks and lighter highlights, still holding details. Dry down is a bit more accurate and to see less flattening in contrast is very nice.
This was my first print with the Platinum and at this point, I know well enough that the variables can change things in an instant. However, with price point being relatively the same as Cot 320, the Platinum would be an excellent choice in my relative fledgling opinion.
8x10 Platinum Palladium Print