Hi Survivor,
I agree with Normark that the accessories on this knife can look tempting at initial glance, but aren't to be taken very seriously without further verification of the knife's performance. Such All-In-One packaging (unless you do it yourself based on YOUR OWN NEEDS & EXPERIENCE) invariably involves some compromises in function or materials quality, especially as the price gets cheaper. And that is a pretty cheap package you are looking at. The fact that the ad for the knife deals more in hype than specifications is also a mark against it.
This is supposedly going to be a surivival knife to use when the chips are down, your life depends on your equipment & knowledge, and your equipment can NOT fail you. In that scenario, buying cheap or compromising can really hurt you badly.
Let's look at the specs of the knife one at a time and see if we can find some alternatives to look at. All prices quoted are in United States Dollars (USD).
"The unique blade is Esparcias tough 440 stainless steel and measures a whopping 21Cm (8 ¼")."
-- First off, it's not unique. It's a knock-off from one of Hibbens' Rambo knives. While 440 steels can be tough if properly heat treated, the ad says nothing of what grade of 440 steel is used & makes no mention of RC hardness. Thus they give us no indication of the hardness/toughness of the blade. So we have unknown quantities for two of the three elements in the Holy Trinity Of Blades (steel, geometry, heat treat). For a survival knife, the tip looks pretty fragile for digging & prying, so the geometry doesn't look all that appropriate to the intended use of the knife either.
While I think an 8.25" blade is within the range of usable survival knives, to call it "whopping" implies that the company hasn't studied bladeware much. Like they haven't seen kukris, bolos, bowies, or other large bladed knives, including larger specifically survival oriented knives like the Busse Battle Mistress, Becker Brute, Livesay RTAK, or Rinaldi Armegeddon and their kind. When I buy a "bet my life on it" blade, it is imperative that the company takes bladeware as seriously as I do. Esparcia's advertising says they do not.
For about the price point of this knife, you could look at some of the Ontario knives in 1095 high-carbon steel or for a few bucks more some of the Cold Steel offerings in AUS stainless. Above the Cold Steel knives are Becker, Livesay, Busse, Randall, and custom makers like Rinaldi, pretty much in order of ascending price. While the Ontario knives (including the GI $15 machete) aren't stainless, they are honest knives for their price window, which the Esparcia knife seems not to be.
"The back of the blade is lined with razor sharp teeth that can saw through just about anything."
-- Knifeback saws are notorious for not being very good saws as a result of the trade-off being made. If you must have a saw, buy a folding saw to stick in your pack. I recommend the folding saw from
http://tashirohardware.com under "special items" for about $30 USD.
"The handle is rugged, coated steel and has a compartment with fishing gear, compass, Band-Aids and room for other survival necessities."
-- If the handle isn't an integral part of the steel billet from which the blade is machined (ala' Chris Reeve Knives at $$$), you have a hollow handle (i.e. not attached to the tang for the entire length of the handle) with a joint of unknown strength holding it to the blade at the ricasso. For carrying small parts of your survival kit, you can get a couple of 35mm film cans or a waterproof tin and make your own kit from gear that has proven itself in your own experience.
"Perhaps the most striking part is not the knife at all but the hi-tech sheath. The ABS plastic sheath doubles as a working crossbow! It has a pull out drawer that contains 2 arrows, a second survival knife (which can be lashed to a stick to make a fish spear) and other useful items for the hiker, hunter or outdoors enthusiast.
-- When you hype the sheath as the best part of your knife, you're really denigrating your knife pretty badly. If you must have a crossbow for your survival (I don't but YMMV), buy one designed to do its job well. Don't try to fake one out of your sheath.
The idea of a second smaller knife is actually a very good idea in my experience. I really like the big/small combo idea. The big one is your chopper/digger/beast and the small one is your cutter/slicer/dancer for delicate work.
On the cheap side of the big/little combos, you could get an Ontario Spec Plus blade for big ($35-$60) & a Camillus or CRKT neck knife for small ($20-$40). A bit more expensive could be a Cold Steel semi-big ($50-$100) & a Livesay neck knife for small ($25-$50). Next would be a Becker Brute for big ($90-$100) & a Spyderco Moran or Fallkniven WM1 for small ($60-$80). On up to Busse Basic 9 for big ($200) (or Busse Battle Mistress at $350) and Rinaldi or Dozier for small ($150-$200). Or mix & match according to your needs, priorities, tastes, & budget.
Shop the web to get the best prices. Since your from Down Under, here's an Australian Sypderco Moran link:
http://www.outdooredge.com.au/catalogue/spyderco/billmoran.htm But since you're shopping the web, it really doesn't matter where the vendor is. He's just out there in cyberspace somewhere.
HTH,
Greg