I own one, I believe it's the Bull Maverick model (hope I remeber it right...)
As a knife, it's outstanding. I love everything about it. I had to re-sharpen it with steeper angle, but it came razor sharp, even with something like 40 degrees inclusive.
Hard to sharpen, hardness is probably over 60, don't remember the stats from his website. I killed my stones, had to go with diamonds to see some results...
Here it is:
I received the knife as a gift from a friend of mine from Europe. This guy ordered bunch of blades from Mr. Landi and had a hard time getting it, the guy didn't want to send them to EU because of the shipping cost, so we contacted him and had those knifes shipped to me in FL. Other than this, I cannot say anything about Mr. Landi.
The other knives were very well done too, big outdoor knives. I used mine around the house, did some batonning and splitting wood for the barbecue, it left me with the impression of being very tough knife, absolutely love it.
Here are two pictures of the other knives: