I have a Pentagon light, good light for the money. I haven't really tried to abuse it much yet and see how it holds up compaired to my Surefires. My only compaint so far was the long process of getting the light. Their server went down during my order so I phoned in my order, a lady whose native language was not English, to my order. Two weeks later she called back and wanted my order again. A week went buy and I received another call, to inform me that part of my order, a clickie switch, was not going to be available, did I still want my order. I confirmed my order and 3 days later I received another phone call wanted to verify my address. Each call I got was from the same lady who understood limited English, after 10 more days I received my order.
Overall decent light but, they need to get their act together. Seems to me they need a little more time before going mainstream with their products.
I would try calling if anyone wants to order, but be in for a long wait.