Union apprenticeship sign-ups near Albuquerque - what worked for you?

I heard of an apprenticeship with paid on-the-job training for people changing careers. I would rather hear the honest version than the polite one. Classes are in the evening and work is during the day. What do you wish you had known?

Visit the training centre in person if you can. Seeing the classrooms helped me decide.

You earn while you learn, but the first year is tight. Plan your budget carefully.