How was your cruise experience in Mexico?

JuleMaus asked:

Soo, my bff and I want to go on a cruise next winter – probably in January.
We’re thinking about Mexico – the pacific side. There seem to be pretty good deals out there if we book soon!
We’re both 21, and are looking for a cruise that is not dominated by younger children and senior citizens! We want to have fun and good entertainment (dancing, etc)
Has anyone had any good experiences with a certain cruise ship, destination, etc that would suit us?

Thanks! :)