I have been a member of Forest Hill Church for about 5 years now and love it. It is the largest/main campus for the church, and it has a casual atmosphere, so jeans are fine, but you will see some people still dressed up a bit more. I love that you see a diversity of ages and families in the church.
Services start with a time of worship- very contemporary with lights, screens to see the words, etc. Senior pastor David Chadwick preaches from the Word of God. And then the service closes with another worship song.
The Southpark campus pastor, Jonathan Scott is also awesome and will preach when David is away, etc.
The church has small groups called "Life Groups" and you can get connected at any time, but check the website for "Life Group Connect" where you can meet all the life group leaders and get plugged into a group immediately.
There is a wonderful children's ministry during the service and middle school/high school meet Sunday nights for what is called "Advance"
If you are visiting or new to the church, stop by the info booth and they will answer any questions you have.