Pros
Opportunity for advancement is second to none. Support systems and resources are there, hard workers can and will move up in the company quickly. Compensation is what I would describe as competitive/average, you won't get rich but you won't struggle either. Generous PTO offerings and all the bank holidays are paid days off, at least for salaried staff.
Kontras
Corporate feel, corporate policies, corporate everything. You need to have a strong stomach for cringe inducing, insufferable corporate nonsense that will be injected in your day to day by executives that have a poor understanding of how to effectively manage trade partners, job site relations, and clients alike. Also, you will work like a dog, work life balance is non existent. The needs of the project or demands of the owner are expected to come first, reinforced by a culture of 'workaholism' that permeates all facets of the company. Typically at least 10 hour days 5 days a week for operations staff, large projects can get far worse than that, like inhumane expectations for work hours and production.