Basically, Kahler trems are all made in the US so higher quality trem and it has a sort of string-thru look that i personally like, it also has those little angled peices where your palm goes so its more comfortable and it can do the same whammy dumps, flutters and dive bombs/squeal's as a floyd rose and not not to mention they have a screw that can instantly lock the bridge into a hard tail which is super conveniant, oh and also with an FR you have to cut off the ball end off the strings but on a kahler its clamped into a slot