I have spent 45 hours last month on the plane and about 15 hours on the train and have always used the cushion. So traveling was much more pleasant. The small pack size is a great advantage of the inflatable cushion. A comfortable sleeping without neck pain following the plane, etc. is guaranteed. When flying you should, however, be careful ... if you should aubläst the pillow before departure drain in the air again some air from the cushion you then ... Otherwise could burst the neck pillow, because the air expands due to the pressure difference in the pillow! The sutures scratch something ... Either put a hood or attach a blanket .... etc is enjoyable.
Did I ordered three pillows, there was to be taken from some reviews that there is cushion quickly broken. This was not so :-)
Strong buy recommendation! Value for money is top!