at first I thought I had broken this thing. but it turns out you really do just need to ~*read the instructions*~ on newly purchased mechanical items.
make sure this is placed on a FLAT, solid surface. I tried putting this thing on a sterilite tub in the bath tub and it stopped working. the tub had it shaking all over. I put in a request for a replacement and decided to try sticking it on my coffee table, with a towel underneath and a bucket to the side for the gravity drain. WORKED LIKE A CHARM. as another reviewer mentioned, the way you place the clothing in the spinner makes a big difference, spread it out evenly - and you'll need to hold onto it as it spins. however, this only takes a couple minutes for me generally!
I love doing my laundry in this because the scent of the detergent sticks so well to not only my clothing, but the air in the room. I also use fabric softener because I'm line drying after this and that can make your clothes so stiff. both are mrs. meyers brand.
in sum, if you're living in an apartment like I am with a shared quarter-laundry situation, this takes a little more work but definitely beats that. 👧🏻