Pros
It's an exciting place to be where the pace is fast, co-workers competent and industry fun. UA also rewards high performers and it's a serious performance culture (which I enjoy). The airline industry also provides the best benefit in the world; free employee travel anywhere the airline flies (which we all take advantage of liberally; there are exciting travel stories from the weekend eveyr Monday). Due to its size, there are also career opportunities cross-functionally so you'll be sure to never get stuck in your career path. As a whole (with a few exceptions here and there but that's to be found in any company), we have very competent leaders in management, directors and officers. They inspire and motivate well and morale is higher than I've experienced in other companies of similar size. Finally, as a whole it's a very transparent company with regular senior management updates, a detailed and upkept intranet, and newsletters. It has been a challenge to read some of these other reviews, because my experience is so different. Like I mentioned above, I have been at a few other Fortune 500 companies and this is by FAR the best to work for. I sometimes think that you need to have been at other large companies to have proper perspective. My last place of work, a large respected company, was by far more bloated, less efficient and agile, and horribly laden with politics and red tape. Though we have some of that here as well, we stay on our toes more, remain more lean and efficient because we are forced to. Some say there is no job security. I disagree. I'm a high performer and work hard at being so. Due to that, I'm frankly not nearly as worried when the "lay off whispers" happen. A lot of people like to just complain without really thinking about if they are putting in their best efforts and not ; the company owes them, not vice versa. We have quite a few of those at United, which I think is sad because this company IS great to work for and most of us here really love working here.
Cons
It's a very large company with the typical bureaucracy and serious red tape. It's also a volatile industry where lay offs can happen, but if you are a high performer you'll need not worry. If you enjoy a more calm universe, United is not for you. Due to the volatility of the industry and occasionally stressful environment, in addition to the expectations of high performance, there are people who choose to leave. Overall though, we do not have particularly high turnover - at least not at corporate. Finally, constant re-orgs can be a good and bad thing. It can provide new opportunities where there previously were none, but it can also throw groups around with different management a bit too often.