Pros
Company invests money in their training, software, marketing, etc. You know that if you need help with company policies or procedures you have the resources. They also have the best (quality) and most (quantity) number of buildings. If you value this, it is great to work in a beautiful high rise of the city. Best pro of all - they offer the BEST benefits package and salaries. That is probably why many seek to join their team as you know you have everything to help keep you grounded and living safe financially.
Cons
Growth within the company is very limited and many employees that have been "promoted within" have worked years and years to get there. You can work in many other (or smaller) mgmt companies and if you have the skills and leadership to move up, you will have better luck with them. They also love to hire new people from out of state or steal from other companies rather than promote within. They NEED to invest in their current employees and believe they have the leadership and skill to move into their next position. They also cultivated a culture of favoritism in the corporate office meaning if you are not loved by the Regionals or Directors you can say bye to getting the growth that you want.