A friend of mine got it recently. You can not get your hair wet for a few days after – I don’t know about what they want you to do before.
I know she colors her hair, and she previously would blow it straight. She says that now she can do that much more easily. Her hair is now very smooth and she is happy with the results.
Please keep us updated on your experience (even though I can’t afford it – it’s over $200 around where I live!)