If you got tired with the "quarter turn left screw, quarter turn right screw" style of spring tension settings with that wobbly metal plate, this is the solution for you.
I hesitated a lot to buy it, as it is not cheap, but in the end, I'm very very pleased with it. I've installed into an Ibanez RG with 2 Goldo backboxes, all my issues with the tremolo has gone.
Quality is top-notch, a massive piece of metal, probably justifies the price.
A small issue is that the ground wire doesn't really have a place to connect, but I wrapped around one of the screws under its head before screwing it in, seems to do the job.