I've used aerobars for a few years now. I like them.
Turns out I have something called Thoracic outlet syndrome, a narrowing of the brachial plexus that pinches bloodflow and nerves to the hand. Sort of like carpal tunnel but in the armpit. So I numb out pretty easily. The aeros provide a position that allows me to unweight the hands and restore some circulation. At first I only used them for maybe 5 minutes at a stretch, as the position felt awkward. Then one time on a road trip I developed friction saddlesores that hurt to sit on but were relieved in the aero position - the pelvis is canted further forward. I did about 150kms that way and now I can ride aero pretty easily.
For my old bike I had some cheap clip ons, then I bought some Profile Designs and eventually cut them in half so I can access a HB bag between them.
