Very good and useful.
I have used it since my baby was born in June. My baby loves it and fell to sleep easily when I placed him into the chair and make it move gently. I am now using it to feed my baby.
I got the HK$ 2400 one at HK$ 2112 only at Sun Wah Baby Centre and got the 20% off discount card as well. If you want to buy it, I think you should go to Sun Wah.