Got these tuners to replace the stock tuners on my ESP Eclipse. Have been using them some time now, and the quality is superb. They lock the strings nicely, gives good response when "turning the knob" to tune the guitar, and it stays in tune. The fact that they also cut the excessive string is pure genius! Considering getting these on the rest of my live use guitars as well just for that feature!
The big downside however, at least for some people, is that the tuners, at least not my set, cant fit strings thicker than 0.046. I always use 10-46 on all my guitars, so I haven't noticed it until today. Tried to string the guitar with a set of GHS Thick core boomers 10-48, and the thickest string just didn't fit through the tuning peg.
So for all the people who uses 10-46 or lighter gauges, these tuners are fantastic! Those who use heavier gauges should sadly look somewhere else.