I have played guitar for almost 50 years and I have had a lot of experience with guitars and therefore guitar tuners. Grover tuners are the world's best tuners and I have used them for many years. IMHO you can pay a lot more, but you won't get better!
Replace some Grover clones on my Gretch 5420. Holds did match up but no problem. The clones were metric and not as dependable as the Grovers. The stay in tune and with 18: 1 ratio let you really control your tuning. Beautiful gold gone and helped make a 900 dollar guitar a 3000 dollar guitar along with some other major changes.