They are awesome!
But....and this may be a problem only i have had.....i bought one years ago when they came out....it was great and worked for three years without any problems but like all things it finally died.
The family and i was going to NM for a week so i bought a new one locally. When we got to NM it wouldnt work. No big deal maybe it was defective, so i went to a store there and got another...plus one of the lantern ones for camp...the lantern only worked one day and the personall one wouldnt light after two days!
Now i wonder if because they are producing so many if their quality has slipped....
I still lbelieve in them and will buy again but will definately buy extras just in case