I think its not very useful for older than 4 months babys (because they are able to roll). and the size of that pillow - you cant use it in the mosses basket, its to big when the baby reach about 3 months. but anyway its better to have it.
This car aeria supposed to be a replacement for oryginal vw passat aerial but its not. It doesnt looks like on the photo, its much shorter.The old one (broken) is working much better than this one. It is a rubbish and I wont recommend that thing for anyone!!!