I'm very impressed. I've been having tuning stability issues on a strat type guitar which I blamed on the rather poor string trees. Well it's not perfect, but it's certainly a lot better!
Rather than just a replacement for Floyd Rose equipped guitars, this is a suitable bit of kit for any guitar and I will probably end up with them on all strat types I have. Ok, it doesn't have the same look and if you have a broken part on a 70' Fender then perhaps seek an historic alternative, but if you are looking for practically then this is a great buy.