Without a doubt the best benefits for employees especially after about 5 yrs. You are eligible for company provide profit sharing starting in year 1 (@15% of salary to retirement account). Health... care is a HSA that company contributes (if you get your physical) most of the amount needed to meet the deductible. Depending on position, you will be eligible for other benefits (which is usually within about 4-6yrs) like car allowance, a company vehicle w/ gas card, bonus, and company shares (which over time can't be touched by other companies).
As an employee owned company you are expected to work like you own a part of the company....meaning that you do what is needed to make the project/job successful. Sometimes that is working extra... hours or doing something not specifically listed in your job description. The hours are longer but in my experience, I think it isn't as much a Hensel Phelps thing as it is an industry thing. I don't know of any large (successful) General Contractor whose people aren't asked to work 50+hours. The company is aware of how important the work/life balance is and have actively made some changes but every project is different.