I own several Winklers, very good indeed.
The belt knife isnt my favourite, in fact it's my least favourite, because the handle is quite long (unless you have meaty wide hands) and the scales are pretty thin. I feel like my old Hunting Knife has a much better blade/handle ratio, and thicker grips.
The Belt Knife is basically Winkler Knives' brand made object, you know about them probably because of the knife. However they make a ton of different models for different purposes, and I would say they're very well thought. I'd use the belt knife as a general use outdoor knife. Also useful in the farm or ranch, to cook as well but it's thick behind the edge.
My favourite in that pic is all things considered the Recon. Much thinner behind the edge, incredible balance and weight, very pointy while being thick, straight tang but tapered blade. I say this because this model is perhaps not what you would first consider when looking at buying a Winkler, it's not a famous model and is more "niche", yet it's a considerably better knife for what I like in knives, and in the same way you may want to consider other less popular models that would better suit your needs.
I started for the fame but stayed for the feel and performance. Many times you'll hear how good they feel, how light they are for their size and thickness, how well balanced they feel in the hand, the tapered tangs etc... this is all true, but many people forget to mention the excellent performance, which I as a knife collector can objectively proof. Winklers cut very well, keep their edges very well, both in time and against abuse and accidents. Much much better than other very famous brands that are known for toughness or sharpness (which also make awesome knives)