Fisher Price Cruisin Motion Soother

http://www.walmart.com/catalog/product.do?product_id=17235901&findingMethod=rr

Have any of you mommas had this before? Good and bad things about it??

I was playing with one at the store. idk seems like they would out grow it pretty fast.
and anything that moves scares me! my daughter is 14 months and will only nap in her swing, since birth. lol no idea how to break her of that. So now I warn everyone.