Things really can change for the better over time.  The Bone is really quite comfortable to lie on.  Some reviews have noted that the headrest is uncomfortable.  I find that if I set my head a little off of center, that the headrest is fine.  Also, I can tilt my head over a little and rest it on the wheel housing.  This is very comfortable.  No more do I have to contend with cords or any other small objects getting in the way.  The large wheels glide over effortlessly.