Pros
They actually care about their employees. They invest in your growth, development, and career path. There is an old-fashioned sense of family, loyalty, and unity. There is no factionalism, everyone is working toward a common goal. Everyone works hard here---not just you. And the team supports one another. If you stumble, there is always someone there to pick you up. The biggest incentive to work here is the team. You just don't find that everywhere. It makes it easy to get up and go to work in the morning.
Cons
I won't sugar-coat it: It is fast-paced and very busy. It is the top lab in the world for fertility testing, and that fact means that their services are in high demand. Their status as the very best in the industry will give you bragging rights and it will boost your resume, but you will be earning those bragging rights on a daily basis. They pay more than everyone else, but there is seldom a lull in the action. It does however make the shifts fly by. The work week seems to just disappear.