Pros
Inflexxion is a place with a lot of big ideas, some of which are great. The people who actually get implement those ideas are awesome - some of the best folks I've worked with. The work environment is generally pretty relaxed... some of the best work-life balance I've ever had. The projects that are active out there actually do a lot of real good in the world. Great location, right on the Charles river!
Cons
The salaries are more in line with academic levels than corporate Endless frustration with the issues around trying to put proper process to grant-based projects - almost every project got stripped down, way behind, or radically off-the-rails at some point or another. Upper management, at least when I left, was still way out of touch with the working crew, and there is all but ZERO business knowledge at the top. They've tried numerous initiatives to make the transition from a grant-based academic organization to a real product-based company, and every one has fizzled, simply because no one internally has the know-how to make it happen once the consultants leave. One of the untouchable upper managers is absolutely insufferable to work with - I don't know if anyone actually left because him, but everyone who works with him threatens it at one point or another. He's probably the single biggest cause of waste of the company's resources, but there doesn't seem to be any way to fix it or replace him. This frustrates pretty much everyone.