I would never ride a carbon handlebar. I am a big guy. Theyhave a habit of snapping for 150lb mountain goats. Think about a face plant at 40mph. Other than that, caron is fine. Just don't crush it in your bike stand.
I won't use anything other than a carbon handlebar. Modern C handlebars damp vibration far better. With Al I had issues with inflammation in my finger joins that completely went away after switching to a well-designed carbon bar. Check out the link below, parts of the handlebar are oval in order to tune flex and damping characteristics.

OneUp Components 35mm Rise Carbon Handlebar
Ride further. Ride harder. And keep your hands feeling fresh all day. Our Carbon Handlebar’s patented oval shape noticeably reduces arm pump and hand fatigue by dampening vibrations and increasing steering response. EWS-winning precision meets all-day comfort. Get more from your bar. Save on the...

This one has a smaller diameter clamp diameter and uses fancy layups in order to tune the flex and damping:

Da Package
ALL WRAPPED UP IN ONE.DA BAROut of the mould our 800mm wide carbon handlebar is offered in 20mm, 27.5mm and 35mm rise options with a 5° up-sweep and a 8° back sweep. We inlay cut marks allowing for precision cutting from 800mm down to 740mm. Hand Laid in Kamloops, BC Canada. DA STEMMachined from...

The ride is SO MUCH better with these bars vs Al, but whether it's worth it depends on the individual and their sensitivity to vibrations.