So are we talking customize your looks or doing what they did in the original where you pick boy or girl and your weapon? Yes there are a shit ton of npc to get, you can only have one in your party at a time though, as well as a various pets you can get and your own golem you can customize. Thing is though, unless they've done a pretty big combat revamp, it's all for nothing because, while you can fairly easily find people who'll praise the graphics and ost, and even the story, almost nobody praises the combat.
So unless you're a diehard Mana fan, a diehard fan of the original, or brawler fan, don't bother.
Oh, and then there's the forging. Yes you can get your own forge and make your own weapons, and hooooollllllly shiiiiit, does it get fucking arcane and esoteric. Think of all the obtuse bullshit from all the FF games, now imagine somebody looked at all that and said "You know, I bet we can make this even more obtuse!" That's what forging weapons in LoM is like.
So yeah, unless there's been a major combat and forging revamp in addition to being one of those three types of fans, pass on it.