Last year I had to face 35Kph headwinds and I needed to reach the destination. The blistering sun was all over me, and there were hardly any place to rest by the road. No shades, not even a grass patch to sit on. That went on for 6 hours. Very tough.
I swore to get aerobars this time whatever the cost. I have been using them almost exclusively now. They are soooo comfortable, especially when it supports your upper body weight on the elbow instead of the hands. I have some videos of me using it
here.
They do block access to the handlebar bag. But that's just a small price to pay