Pros
This really depends on who is your manager (lead, project mgr, etc). If you have someone good who cares about their employee's it makes it worth your while and it gives you the career opportunity that you want. High turn over can help you get to your career goal quickly (you have to want it and talk to your manager to see what you are lacking). Argo is making some changes, a bit slow but at least they are taking it into consideration (need to know who to talk to). Environment is great, everyone is friendly and willing to help.
Cons
No work from home. Typically you have to come when there is bad weather (like icy roads). If you're on an implementation team expect alot of hours. Alot of turn over, so the knowledge and help may or may not be there. No real innovation since argo is using a propriety language.