Pros
Deep pockets and name recognition in the industry. Good front line people who want to do the right thing. Top down management is effective at driving change - always strategically nimble...but operationally stressed
Cons
Kind of a "frat boy" management culture that rewards insiders and pushes out everyone else - typical perhaps of old school Midwestern business, but out of step with the multi-national company they have become. Current CEO is a product of that culture and it shows. Tough place to work for mid-career professionals coming from anywhere else. You need to start here out of college and be OK with towing the company line. JCI has always been a stockholder friendly outfit with less regard for employee or customer satisfaction compared to their peers (in building efficiency anyway..)