Aragon is stunningly beautiful in places, extremely bleak in others. It’s a completely different world to the built-up med., not least because winters can be extremely cold. I’ve even felt cold there (at night) in August.
If you’re looking for a summer retreat to avoid the worst heat of summer it’s a possibility. The family of a friend of mine (who live in Valencia) have a chalet in Teruel province as their escape. Plenty of beautiful landscapes and forest walks.
I personally would hate to live there all year around though. Winters would be too punishing.