Welcome to the Community Ghiblee. Hope you are prepared for how crazy we are, massive discord pings, and more! (One day Ill get up the courage to apply for the CM position...)
Some classes are worse than others (EX: Jett and Beast Tamer) but ultimately with enough time and effort, you can make any class into a pretty strong character. I knew a beast tamer who was able to solo Hellux and carry CRA Pre-5th job. Just play what's fun to you and put in some effort to help it grow into an awesome main.
I officially kinda hate them. Today's new daily has caused me a lot of frustration and anger. Survive 3 stages of Terror...well teh damn Terror beasts are too flippin tanky to take down! They really should adjust their HP or something because even a 1.5m buffed to hell Luminous can't handle them in time. People in my maps have also expressed extreme frustration with this quest. Please just do something Nexon. I don't enjoy this event anymore. It's become nothing but frustration and irritability at this point.