They scale up very well. Though 1:48 is more 35mm (like Reaper, Corvus Belli and some others) the legs of the cows look a little thin comparerd to pewter models,but I thonkthey look fine. The only real drawback is the soft plastic the miniatures are made of. I'll post a comparison photography with some Minis (Perrys, Westwind and Foundry) as soon as I come around to paint one of them (which might be this weekend).
I allready feared something like those sunken roads, but did't know an English term for them. Unfortunately I want modular roads, so I have to look out for some optical tricks to make them look like sunken roads.