What i consider a good thing is that distances are shown in kilometers, rather then hours. Mountain trails might sometimes be marked in hours, as the hilly terrain adds it's time toll significantly, but for the most part, it is kilometers, which means that can very easily estimate how long it will take you to your destination while walking/running/biking...

But not all signage is great that in CZ. For example driving roads are mostly marked by "destination cities" at intersections rather then by road numbers (except of highway exits), so when planning a road trip, you must create an itinerary of towns to pass through, rather then simply following a map of roads.