I personally have never seen a hollow handled knife other than the CRK series that was what I would consider acceptably sturdy. They may exist, but if so they are certainly an endangered species.
For the $150 that they are charging for the Aitor you could get a superior knife from somebody like Swamp Rat or Greco and still have money left over to buy what would almost certainly be higher quality survival equipment.
If you like that style you can get a similar solid handle bowie from Kabar or Camillus for roughly thirty US dollars, buy lots of fun equipment, have dinner at a nice restaurant, and still have money left over. You'll probably get a better knife, to boot.
According to the link you provided the knife includes:
fishing kit, sewing kit, scapel, clips, adhesive dressings, pencil, 5m nylon cord, pillbox, compass, SOS symbols, signalling mirror, ruler in mm and inches, magnesium block with flint, latex tube for use as a tourniquet, doser flask, 8m cord, catapult fork, and wetstone.
There is nothing in there to make it a good deal compared to the other manufacturers who have already been mentioned. The total value of that stuff if purchased retail is less than twenty bucks, assuming that it is good quality (a rahter big assumption, considering that they aren't willing to put it in the picture).
If your goal is to get a knife that will be neat and gadgety and won't simply "break straight away" this one will probably do. I would recommend you reconsider if those are your only criteria.
However, there are better products that cost less money.