I have to say I disagree. Planet Waves are AWESOME. They have a lifetime warranty and the string cutter works everytime providing you put the string in the right way and pull the excess string (this helps cutting as you're increasing the tension- giving a cleaner cut)

! Why not have it cut the excess string for you? It gets it closer than I ever did, and they look awesome too. I have them on ALL my guitars (even the ones with locking nuts- and I think it's perfectly justified as
A) It helps MASSIVELY with string slippage- I don't like the idea of string slippage behind the nut when it's locked,
B) I use D'addario strings and don't want a mini rainbow at the end of my headstock from the ball end at the machine head trick)
Go for PW dude, you won't regret it.