I'm kind of iffy on the rental system, because even if I can make it through the dungeon without dying, I know that I'm probably gonna die a few times on the boss, so I end up buying the item (for like 1000 rupees
But I love the exploration and no limits world, definitely much better then the other two DS zeldas (even though i liked phantom hourglass alot, but the transportation focus got kind of boring by spirit tracks).