Bit of history. The Infantriekarren IF8 to give it its proper name was a simple cart issued to just about every infantry unit in the German Army. Anyone who has seen pics of the Germans on the move will probably have seen one, even if your mind fails to register what is in fact a simple two wheeled cart. They were designed to be hand pulled, horse drawn or even by motorcycle or Kettenkrad. I've even seen pics of one being pulled by dogs! You could pull two together in tandem. They were used for carrying, well anything, but mainly ammunition and other infantry supplies.
However, I can hear you thinking - as I did, why? Wargamers are notorious for wanting big tanks and guns and on this measure I admit the IF8 is a bit lacking, as it doesn't do anything "kewl" and you would be hard pushed to think of a special rule to apply to it. On the other hand this is a fantastic piece of military equipment that will enhance the look of your game just by being there. I plan to use mine as jump off markers for my German Infantry in Chain of Command.
Back to the kit. Its a nice and well detailed kit, you actually get 2 identical sprues in the box, each will make one cart, plus a horse and a soldier to lead it. It goes together well and quickly, and you can build a number different load-outs including a Panzershrek frame and an MG42 AA mount.
You can't mention Valiant without mentioning scale. It says 1/72 on the box. Received wisdom in wargaming circles is 1/72 equates to 20mm. The problem is that the soldier provided is rather taller than that, much closer to 25mm, but still small when compared to other "28mm" ranges. In short (pun intended) these really only fit with other Valiant models.
I'm still totally conflicted about Valiant. They're superb models, but they just don't fit with anything else.