I've received service from Nanuks products several times and knew their after-sales service was good, but GL&Co is also great. When I inquired about parts that weren't available, they just sent them saying they had stock ㅠㅠ That's amazing. Since I saved on parts costs, I should participate with one more GrandPhone too. Good service from GL&Co, it's nice. There's talk of good and bad, but I'm satisfied with the service I received for the first time.