Some people find them comfortable others don't. I am one that does not find bullhorns comfortable. The downside is that they don't offer many hand positions and they also put lots of strain on the hands. If you tip them upright it will work but you'd be better off with a flat bar and risers.

For commuting short trips 5-35 miles I'd say the mustache is very good. Very narrow bullhorns might have a good advantage for zipping in between traffic and violating laws But they are not exactly comfortable. I think the bullhorn bars are more of a fashion statement than actual function.

I don't think cow horns style bars work well for those us with larger hands. I once ran mustache bars reversed like a bull horn and they looked unique and offered a more comfortable hand position.

All things considered drop bars are the most versatile. I like the randonneur style bars with the flared bend. It makes for a comfy ride.