Pros
You can learn A LOT. I am currently working at Triumvirate as an Environmental Specialist. Like most environmental specialists, I received this job right out of college and had very little knowledge besides a few internships. Triumvirate paid for my OSHA 40 and I received constant training by the company throughout my first year. After the first year the training decreases but it still carries through. Many companies I applied for immediately dismissed me simply because I did not have my OSHA 40, so this attribute is unusual for a company. There is a huge amount to learn and it takes hard work to learn it, but once you master it, you can begin to move up in the environmental specialist ranks. There are five different levels and as you prove yourself and pass a set of tests, you can receive a promotion and slight pay increases. Many people who complain about this do not want to put in the time and effort to move up the ranks. If you put in the time (a lot of time) and effort, you can move out of the position and into others. During the interview they touted upward mobility and it is there if you work for it. Many people complaining about the company and position do not want to put the time in to make it happen.
Cons
I mentioned previously several times about hard work, and you do work hard here. There is a lot of physical labor involved in the job and you can easily work a 60 plus hour work week, making your work-life balance nearly impossible at times. On top of working that many hours, you regularly start between 5:30am and 7:00am, so it is tough to catch up on sleep when you do work a 12 plus hour day full of manual labor. Within the first 3-6 months, people either get used to the busy schedule or leave the company, taking their certifications and trainings with them. During these busy days, often you will not even stop for lunch. Although the upper management says they discourage people skipping lunch breaks, this is a complete lie. I have been "talked to" on numerous occasions by my coworkers and managers about taking a 5 minute break to eat a sandwich quickly. This is not a joke, so be warned. Most people are scared to take a lunch but I take one because I know I cannot get in any real trouble for taking 5 minutes out of a 12 hour day to eat quickly. The work is usually disorganized. From getting in early in the morning and not having the proper supplies needed to complete the job to having missing or wrong paperwork, this happens too routinely. These mistakes all stem from the office, yet they try to pass the blame on us environmental specialists. This all adds an extra layer of stress to an already heavily stressful job. Do not expect to work in this job for more than 3 years. By then almost everyone has either moved up to a different position in the company or left to a 40 hour job.