Why would you think Jantz is not a "reputable maker?"
They do their own waterjet cutting, grinding, and polishing. While you may think of it as a "no name" product, anyone who makes knives knows differently.
I have dealt with Jantz for 30+ years. Their quality is always top notch, and their customer service is impeccable.
I'm not busting on Jantz. There is "no name" stamped on that blade. I'm sure they are a very competent source of grinding hand heat treating prowess - if that's all that goes into a knife like the OP's. They price that competence as low as $22 for a D2 or 440C blade.
But if you believe that the cost of a knife includes someone's design expertise in the way the knife is shaped for its intended role, resale value, name recognition and maybe a warranty, a Jantz $120 knife blade might be found lacking.
I would personally buy one of these blades - just not for that much money, for the reasons I just stated.