Pros
Unionized work (union wage, benefits, pension etc.), good learning and training experience compared to smaller companies that don’t have as detailed of a safety program (having a good safety rep training you is crucial though, especially if you lack construction experience).
Fast paced work environment for those who like it, and as stated, gives you a good platform for working in a higher level safety position elsewhere.
Not as much physical work involved as a labourer, carpenter etc., but be aware that you are expected to be involved in maintaining safety of the site, which means wearing a tool pouch
Cons
Safety manager has a strong personality and is very rigid and set in her ways, even if she is wrong about something. Difficult to communicate with which usually leads to safety reps going to her second-in-command rather than speaking directly to her. There have been high turnover rates in the past and she is often cited as one of the reasons.
Many supervisors don’t treat safety reps and their responsibilities with respect, which creates a stressful work environment, especially for newer reps. They are quick to place blame however when things go wrong (not specifically talking about my experience), though I know this occurs with other companies as well.
If you lack time management skills there is a good chance that you will struggle.