The Storm 500-R headlamp and the Storm 400 are both quite comfortable. To be honest, I haven’t worn a Black Diamond head torch that isn’t… but I do enjoy the more compact 500-R. The Storm 500-R isn’t as noticeable on the noggin’ making it that little bit more comfortable.Also, adjusting the head torch is super smooth. The Storm 500-R doesn’t click and glides into position. I can’t even begin to explain how much I prefer this compared to the loud ‘click into place’ versions.