I just returned from an overseas trip that involved a total of more than 26 hours of flying. I have used neck pillows for years, and have a very expensive heavy-duty one that works fine but is to big to pack in my carry-on and so is a pain in the neck (pun intended) to carry through the airport, long layovers, etc. The Trtl appeared to be easier to pack and I decided to try out this new design. I found the Trtl to be, as expected, convenient to travel with as well as quite comfortable. The important thing is to secure it tight enough so that it supports your neck upright and to place the curved end of the internal structure correctly on the curve of your shoulder. My only criticism is that the plush fabric is very warm (thus only 4 stars). This proved to be a bit of a problem on one leg of the journey when the temperature in the plane was a bit warm. I had to take it off. However, it was a benefit on another leg when the plane was kept unusually cold -- for 7 hours!! I recommend that the manufacturers experiment with a cooler fabric or the gel material they now use in pillows. Nonetheless an improvement over the standard neck pillows which are also warm.