That sounds fantastic!
I’m a coffee scrub. What I make tastes great, but only because I add stuff to it. I use a cheap-ass espresso machine, pull three shots worth, pour it over some ice, add some benefiber (flavorless powder, just adds fiber to stuff) and some flavoring (right now I’m rocking an horchata mix), then some oatmilk, then shake to mix it.
This doesn’t take 15 minutes, but it takes a lot longer than it should because I’m usually making breakfast at the same time. The ritual is quite relaxing though.
I tend to like 1.2x. I want to enjoy it, but audiobook narrators talk very slowly for clarity. If I listen that slow I tend to get distracted.