I bought Aprica ($ 490) at Wing ON with 10% discount.
I used it last Sunday, it is good. at least my baby (3.5 months) stayed clam (he splet for most of the time) when I did the window shopping.
besides, it is cheaper. But I rarely see the displays/stocks in department stores. I only saw it twice. once in Wing On ( I bought the last one) and another at Sogo.