April 2020 Update:
So it's April 2020. I stopped using this keyboard January 2019. I decided to hook it back up and see if time did us a favor but no it didn't. I decided to open it nonetheless and see what's up. I discovered the logic board or circuit board or whatever board it is has some weird gunk like leftover solder. I brushed it away with 70% alcohol and let it dry. Now it's working perfectly fine. So if you have this G100 keyboard and you returned it for warranty and for some reason it's back in your hands with a "no-issue" from the supplier, open it up and see if you have the same problem as mine did.
TL;DR:
ABSOLUTELY DO NOT BUY THIS TRASH.
Why?
The mouse is okay but the keyboard is bound to universally die on you within the first month of use. Mine started acting weird withing the 3rd week and I sent it back to the distributor for warranty but you know what? Since the keys that choose not to work are seldom fix and almost random, no seriously, it used to be the q key back in July 2018. Now it's January 2019 (And oh, I should mention it was not with me from August to December 2018 because the store sent it to the capital to be tinkered with by their techs, lol so much for their 4 weeks promise) and it's now from key b to ?. SIX KEYS JUST NOT WORKING DESPITE ALL THE DRIVER/SOFTWARE REINSTALL SUGGESTED TO FIX IT. Sure, they say try it on a different OS or computer but guess what? Some keys don't work again. This Logitech G100s gaming combo is utter shit. Just don't get it if you find one of it.
P.S.
The store I got this from is Datablitz, a well known PH chain selling consoles, games, and other gaming accessories.