The lack of a minimap is pretty awesome. There is a careful balance between preserving adventure vs making the game frustrating; between convenient and immersive.
I very much liked the early days of D2 when you had to legitimately watch out to always have scrolls of town portal. Or in D1 when your mana didn't auto-recharge and you had to meter out potions, trips to down for free heal/mana, and just getting in there and doing physical damage because you were out of mana and needed to wait for a potion to drop.
Convenient features always take me out of the world a bit, and stuff where you have to die, try something new, die again, etc to win always makes me feel like I'm actually learning to play better.