I love the RY4, it has a mild caramel, nutty flavor.
It has a hardly noticable sweet smell when you vape it, similar to caramel, or I've been told, cotton candy.
The bottle I'm using now is 24mg, I'm cutting that in half on the next order to 11mg, but only because I want to cut my nicotine down a bit, not because it's too strong.
I don't notice a strong throat hit with it like I do with their MB flavor.