Pros
Technical personnel is generally very capable and willing to help. Unlike managers, they represent a true asset of the company. I have been working for more than 2 years, possibly less than 5% of the technical personnel I met I would rate as incompetent. Conversely, for manager this percentage would be 95% (and note that I am part of the management force too...). Office in Montreal CCE building is very neatly laid out and a comfortable place to work on.
Cons
Webster defines a bureaucrat as "an administrator concerned with procedural correctness at the expense of people's needs". This, in my view, accurately describes the CGI way of doing things. Management is obsessed with processes and if employees complies to the gazillion number of CGI processes. They don't care how you're actually doing, how you feel about your work, they simply want to do if you're a good soldier by acting and thinking like a CGI cardboard template. Focus is on process compliance. All the rest is in the background, including client satisfaction. I've rarely seen managers with so little insights about what's really going on. Even if you prompt a manager to "think", he/she (really many "she" lately) will react negatively by reminding you what this is the way things need to be done. Luckily enough for them, the competition is equally mediocre, at least in Canada, so they can get by this way... I also remark that the company pretends to have an "international" status but that is not true. Basically all the work force is in 3 countries, Canada, US, India. Some of the international offices are fake (i.e. Italy: there is no such office).