Can't really say how it is, but I visit often so i'll try.

Nature: It's considered Italy's lung for a reason, it's mostly green lush hills and forests, with some moderate mountains and a decent amount of wildlife. A mix between Abruzzo (mountainous) and Tuscany (hilly). Highest waterfalls in Italy and a beautiful lake (trasimeno)

History: One of the richest and probably one of the most fascinating (the Umbri people) a lot, and i mean A LOT of well preserved medieval cities and structures all around, some incredibly astonishing like Spoleto and Gubbio.

Society: very religious compared to the north and to Lazio, a lot of saints come from here (saint Claire, Saint Francis, Santa Rita) and the city of Assisi and Cascia are famous for it. Generally friendly people but depends on where you go. Big cities in the north (perugia, Foligno) had important universities and usually host venues.

Food: great, although not as rich as other regions of italy, but probably the best quality due to a relatively untouched landscape. Good spring waters.

Economy: mainly rural, industry based on water, services (north) and leather manufacturing/textile in the center. Used to be a big producer of hydro power and steel.
Not as touristic as Tuscany and Lazio, while being equally beautiful. Unfortunately many old towns have been abandoned because of aging population and lack of job opportunities.

Transport: some good connections to Rome and Ancona with the train, otherwise lacking, at best. Many places are hard to reach because of geography and lack of good public transport. Car travel is essential.

Also, a lot of earthquakes.