I bought these to replace the tuners on an import LP copy that were absolute junk. I am very impressed with these. They are exactly as described and function the way they're supposed to. No play, no slop, they turn smoothly and hold tune perfectly. They look just like the ones I replaced, but these feel a little heavier and much better quality. The chrome color looks great. If you have an entry level guitar you'd like to upgrade, these are worth every penny. Not a large investment; very cost effective to replace the bad tuners that come on most beginners guitars. I've read some reviews that say these are not Grover quality. That may be true, but in the past I've used Gotoh tuners to upgrade some guitars and these feel on par with those for a fraction of the price. Are they Grover quality? For the price, they are as close as you can get. I believe the reason is because these are Korean made by Jin Ho and when you go for the Musiclily Pro version of these tuners, you get the best bang for your buck. So far, I have not found anything wrong with these; not a thing. Not only would I buy these again for future guitar upgrades, but I would not even hesitate to put them on a higher end guitar. I know some people have had a bad experience with theirs, but that is not the case here. If you end up with a problematic set, it's most likely a fluke and you might just consider exchanging them for a new set. I notice there are more 4 and 5 star reviews on these than there are lower scores. Just like anything else, it is always a possibility that you'll receive a lemon. It happens and can happen anytime, for any reason on any product. Fortunately, I received a great set that surpassed my expectations. Will you have the same experience? I have no way of knowing that. All I know is, there are more happy buyers of these, than there are unhappy. As of this review, these tuners have a score of 4.5 stars and of course, I am writing another 5 star review. Again, the price of these is 25% to 30% of aforementioned name brand tuners. Are $60 or $70 dollar tuners 3 to 4 times better than these? Absolutely not!! That's what makes these such a great deal. If you're having any issues with the tuners on any of your import LP copies, these will fix the problem. That's my experience. Your mileage may differ.