What kind of difficulty curve do you like in a JRPG?

The question of difficulty came to mind while playing Metaphor. It was pretty challenging early on when resources were very limited and I was also learning the gameplay systems, but I'm starting to feel powerful now mid-game (while still being challenged a bit). That's where I like to end up, typically. It has a nice ludonarrative feel for the games that typically have you killing god.

What do you like?