Bought to upgrade a split nut on my Mexican Fender. I popped the old one out and put this straight in with no hassle at all. Only slight modifications I made was to remove a little material from the bottom to make it a little lower than standard, but that us solely for my purpose. The tone is great, I use EB Super Slinkys and the slots were the perfect size for that already, however if you use a heavier guage you may need to open up the bass slots a little more.
All in all a great nut, lovely tone and easy to install, would recommend as an upgrade for your guitar!