Do you have earlier experience from MX Red or not?
If having normal membrane/rubber dome keyboard that very light linear switch might easily cause accidental key presses:
Romer-G has some resistance before depressing so would be safer first mechanical switch.
Also its lightning is better than in Cherry MX and with internal noise damping for both down and upstroke it has lot calmer/smoother overal sound.
G513 is the newer model iirc. Might be worth a look at.