Why is everyone so crazy about the Tula carrier? And is it worth the price?

mothercare has 15% (GSS) off tula. If you are not particular abt print i think its quite worthy. the material is very soft and the gap between the thigh is higher. am using manduca previously cos it has built-in infant seat. as the gap is small and my boy's thigh is quite fat thus causing my boy's thigh to be very red and tend to turn purple if use too long.