I say "Genial". Greetings!, Elliott.

guay or super guay

In spanish from Mexico you can say ¡Súper! ¡Genial! I send you an inbox message See you

Buena pregunta En Colombia se dice chévere. En españa se dice guay So it just kinds depends on where you are. I'm sure that there is a different word in most countries.

In Spain you can say "mola" or "genial"