I think worldwide it's not going to be until end of May to get our hands on it, but my guess is (similar to R53) it will have a strong booster smell that I never remembered R50 having. So it will feel softer than 48 degrees.
R53 (i liked it a lot)...does seem to loose a bit of 'pop' at around 4-5 weeks...maybe due to the booster wearing off. It was a gradual decrease so still quite playable.
I did see this in my feed yesterday with their Andro sponsored player.