I worked for them last summer for 6 weeks, and I thought it was a good experience. The people were very welcoming and friendly. The work environment was fairly casual. The office is quite large - over 100 people. They do mostly hospitals, with some work on schools, campus planning, and other project types. Their work seemed a little more interesting to me than TVS, but the firms are fairly comparable.

Let me know if you have more specific questions.

I actually just started work here. I've only been here a few days so my insight is limited. Everyone is friendly and the environment is pretty casual. We do alot of healthcare in addition to laboratories and education work. There is a big commitment to LEED and sustainability(I was told over 90% of the principles are leed accredited, which is a impressive).
I came here from a large AE firm. I can tell you that for a firm this large, its not a very 'corporate' atmosphere. Its casual, there's mandatory beer-time on friday, and its a relatively flat organization.

mandatory beer time? that is the great thing ever! if and when I have my own firm, I too will have mandatory beer time!

i'm applying the Chicago firm. I hope its a good experience

i have several friends in the atlanta office that have been there since right out of school (say 5 years) and still really like it...that is a plus!