Edit: I wrote this response on my phone when I couldn't access the full info on the link. It looks like what I own - and am talking about below - is in fact a cheap knockoff of the linked knife (it was sold as a cheap original knife). I'll leave my original post in its entirety.
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I own either the same knife or something very similar. In my defence I wasn't exactly expecting a quality product. It was cheap and I was curious from a design perspective. I guess an ad hoc review is in order.
Housed in the knife are:
A combination edge liner lock knife.
A LED torch
A fire steel
A belt cutter
A glass breaker
This is a case of a good idea which has been executed awfully.
The knife blade is a good size but the softness of the steel, poor edge holding and awful serrations let it down. I like combination edge knives for emergency services use but these serrations are too small, too deep, too blunt and too pointed. They don't do what serrations should do.
The belt cutter is poorly aligned so what you're trying to cut just snags.
I haven't tested the glass breaker but it seems both soft and blunt.
The fire steel is a nice touch but in my mind ultimately pointless because the poor overall quality doesn't support outdoor use.
If it was well made using decent quality components and swapped the fire steel out for a screw driver, this could have been an excellent tool for emergency services. But this one is awful
I should add a disclaimer. There is a chance that I own a knockoff and the one you linked is awesome. I guess it's a possibility.
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Okay now knowing that in all likelihood the knife I own is a knockoff of a higher quality product I'd be interested to know how well the original works - it could well be everything that the one I own isn't. When I was active with emergency services it would have been very useful to have a quality knife, torch and something to bash stuff (ie glass breaker) in one hand while in confined spaces. It could prove to be as useful as a lot of multi-tools.