I bought this light as a primary light for day time deep dives. The light it puts out is great for low light situations (swim throughs and looking under things). It's a little too big at the front to fit into my BCD pocket without being difficult to get back out.
The controls are good and I like the lock feature to keep the light either on or off.
I gave it a 4 star rating because the charging instructions are a little vague. It would be good to know how long it should take to charge seeing as the instructions mention not to leave it charging for a long time. Apart from that, it's a good bit of gear.