I have bought about 20 of those over the past 4 years. I have given away about half of them.
They are great lighters when they work.
My current one I am using is about a year old. I only need to fill it up about once every 8 weeks. Thats using it to light and relight 20 to 25 cigars a week. I never fill it over 3/4 full. I carry it in my pocket all the time. Never fails to light. Everyone I have given one to, loves it.
1 out of 5 has some problem, the valve doesn't shut off, the activator switch breaks or comes loose, the top won't stay on. But for $ 3 each, you can afford to buy 5 and throw one away!