so, being its the middle of winter I have not backpacked with this pillow. I did sleep on it one night to test. The cradle shape is very comfortable for my side sleep. The case is nice and soft, feels good on my skin. Its quite light which I makes it desirable to me. I used to just stuff a sea to summit pillow case with spare cloths...light yes, comfortable, not so much. My one possible complaint is the plastic bladder makes noise when you move your head. Its crinkly...so this may put some users off. I cannot comment on longevity at this time.
Thank you for your review and comments