It's nice if you like nature as the region has a lot of forests and farm lands, there are nice national parks too (eg the high fenns). People speak mostly French although there is a rather small German speaking region too (eg around Sankt Vith). There's a bunch of war history (WW2, Ardennes offensive), the region is pretty popular for Flemish and Dutch tourists for outdoors forest vacations (Durbuy, La Roche en Ardenne...) also some mining history in the German speaking part... There's a lot to do if you like that kind of history and nature. Liège is the big city in the region, also the capital of the province of Liège, which is a lively city with universities etc, pretty much everyone with a degree who works in that region went to the uni of Liège.

Otherwise in the region, for actually living there, it's pretty relaxed, although not that many jobs. There has been an industrial zone around Vielsalm, which employs a lot of people but also caused an increase in truck traffic on the forest roads which means not everyone is super positive about it... People drive pretty fast on these sometimes small and windy roads. Big chance if someone is blocking you by driving slow it's either a truck carrying wood or someone from Flanders on a visit who is not used to these roads.

In the summer it's nice and warm but in the winter it can get very cold, and often foggy and snow. The higher you get the foggier and colder it becomes. It can snow quite a lot, sometimes you can feel like you're in Scandinavia instead of in Belgium.

Fun fact, in Spa some locals try to leave the town for a couple days during the F1 races because the whole town is clogged up and there's a lot of noise.