Out of the box, this cube is very tight and dry/sandy and locks up a lot. Best setup I've found is to pop the center caps and loosen all 6 sides by 3.5 turns. Then compare the tensions on all faces to make sure they are even. Usually I will find one or two sides that need another 0.5 turn looser to match the others.
Then add two drops of Lunar to the top and bottom of each slice, one on the inner plastic part ball and one on the inner edge piece. This will put 4 drops on the yellow/white slice, 4 on the blue/green slice, and 4 on the orange/red for 12 total.
After each slice, rotate the L and R a few dozen times to distribute the lube.
There isn't much spring noise at these tensions, but on my first couple (white and blastic stickered) i also added 20W to the springs, but with the stickerless i don't think that is necessary.
Although I love how the cube feels with stardust lube, it is hard to get stardust to stay where i want it, and it seems to go away a lot faster than lunar. Martian is a little bit slower but still feels really good. Comet starts feeling too heavy/resistant to finger flicks for me. Galaxy, then nebula, then cosmos feel increasingly heavy/gummy and doesn't work for how i like this cube set up.
I've provided another review, but i wanted to pass along how this cube becomes an excellent $5 cube with very little setup. Head to head it isnt a flagship cube, but dollar for dollar it definitely has a place in my travel bag, and I'm not worried to let a novice or young 'un play with it/drop it.