Whoozit Toys Manhattan Toy -- Whoozit Question?

Manhattan Toy -- Whoozit question? - whoozit toys

If you had the toy Whoozit from Manhattan Toy, at what age baby is interested in yout? I am thinking to buy this, because I heard great things about it. My baby is 5.5 months, and I wonder if you get bored with this kind of toys soon.
http://gifts.barnesandnoble.com/Toys-gam ...