No, I don't like level scaling and it's not because it adds grind, it's because otherwise the world is babying you.
Really think about it a game that lets you go anywhere like Fallout 3 is NOT what the games goal is to be an oppressive survival RPG in a wasteland, the game babies you to the point where nothing is a challenge.
Play New Vegas and go north, you will die and after all the warnings it's your fault. New Vegas didn't baby you, if you wandered into an area and found a death claw at level 5 you knew you were screwed and your options were run or run. That's what made it fun, an area to explore but you had to work your way up to be able to do so. Otherwise there's no sense of scale it's just oh no, a new enemy, guess I'm ready for this guy!
No, you should run into people who can rip your face off and you need to learn to when to fight or run, or if you have the skills and the items you can work on wearing the enemy down yourself and man what a thrill that can be.
Level scaling just ensures the game is always at a sort of middle ground of difficulty and will never aim to challenge or put obstacles in the way and that makes it easy, boring and bland.