The major advantage this headlamp has over other headlamps that use 18650 batteries is that the battery compartment is in the front, leaving the back to be "mostly" smooth. The other headlamps typically have the battery compartment behind the head. While this helps a lot with balancing the headlamp on your noggin, this setup is not ideal when working under a car. For me, having the battery compartment in the front is a major plus.As for built quality, this headlamp is top notch. Very well built.As far as comfort, it is a tad bit heavier than other headlamps that also have the compartment in the front. But only slightly.One thing I did notice, is that the battery, while it claims to be an 18650 battery, it is a bit longer than the common 18650 battery. The disadvantage of this is that unless you have long batteries, you cannot swap out a dead battery for a charged battery. You have to plug in the entire headlamp to charge. If you are in the middle of a job, this is going to be a bummer.Overall though, I'm VERY happy with my acquisition.