The amulet itself isn't the problem... it's the challenge level of the quest leading up to getting it. You have to beat 3 pretty hard bosses and then beat their ghosts, too. The reward hardly seems worth the work it took to get there.
I think that depends on what you want.
If you're reward-driven in the way you play then maybe you'll want more - (but then you'll always want more?) - if you are of the opinion that the journey is in many ways more important than the destination then I don't see it's a problem. Niamh has been wearing it since she got it, and I think it's a really useful piece of kit and the whole quest line to get it was a lot of "fun" to do, and challenging to.
That's obviously my opinion and I can't speak for your subjective experience...