Bought this tool for my Ibanez RG560, equipped with an Edge Trem.
This tool will save a lot of time when setting the intonation on Ibanez trems, it's easy to use and it gets the job done quick.
The quality of the tool is great, but I personally consider it a bit overpriced.
I recommend it to people who change strings on their Edge equipped guitars regularly (I am not sure if it works for other trems as well, I didn't try) and to techs, it's a really handy thing.