Pros
The flexibility is great, at least in the corporate office. There are a lot of really smart people so you will learn a lot, and for the most part, people are nice. The corporate office has a lot of great "surface" perks, i.e. nice building, decent cafeteria, on-site Starbucks, etc.
Cons
Sikich is the most political environment in which I've ever worked, and many groups are severely underappreciated and disrespected. Management doesn't get it or turns a blind eye. Good people continue to leave. Health insurance is horrible, pay is subpar and management tends to keep mistakes "on file" to throw in your face later. They have been known to say one thing, and do the complete opposite. I really disagree with the reviewer who said they mean what they say.