Product review (4 stars): Don't try to hold it down if it spins out of control... just unplug it!!
It *does* work well but can be very alarming if unbalanced. It rocks on its feet, makes noise, can even move across floor. Also, if it knocks the water collection bowl, it can spew quite a bit of water.

I suggest you *don't* try to hold it down if this happens! It can jar you pretty badly (unless you're a wrestler or competitive weightlifter).

Instead, just step calmly to where it plugs into the wall and unplug it. That's the fastest and by far the best way to get it to stop. Once it's unplugged, just rebalance the clothes and try again.

One tip I've found to avoid unbalanced loads is to press down on the clothes with both fists, compacting them. I don't know if this cuts down on how much water gets spun out.

Have been using for about a year now and it really does a good job of spinning water out! But the occasional unbalanced load is still scary!