Pros
If you are mediocre, lazy, and want to use zero brain cells for 8 hours a day, this company is for you. Have opinions or ideas, a desire to succeed, or want to be part of a successful company that is going places? This is NOT the company for you. So long as you cow tow to the CEO, who makes every decision, no matter how minute, you could possibly be allowed to exist and collect your mediocre paycheck, which will be more than you deserve for subsisting at this organization beyond the point you realize what a cesspool it is. If you work there now, wake up because the game will be up soon when AT North America (which is nothing more than a playground for the aged CEO to tuck losses and expenses into) will no longer be propped up by the Japanese parent. If management of AT is trying to recruit you with dazzling promises of transformation, investment and the part you will play in a "key role", smile and ask to interview the BOD (stuffed with the CEOs family and friends who equally but silently scratch their heads as to why the parent company continues to let the CEO persist), the department heads ("boomerangs" who have been tossed away over the years and have come groveling back) and three random employees who will give you the straight dope on what it's like to subsist there (take their input with a grain of salt, though-- many have succumbed to zombie-ness or have fallen victim to Stockholm Syndrome).
Cons
Management takes no action or decisions that would lead you to believe they are interested in managing a going concern. The CEO and his head henchman (who goes by the titles "President" and "Chief Risk Officer", as it suits him) run the business like a chess board full of only pawns. No company strategy, no goals or objectives, no communication--neither at the executive level nor to the rank and file. There is zero plan as to how the company will develop products or solutions that will enable them to compete in a mature, saturated networking market where key competitors have SDN strategies and solutions which are already eclipsing AT's ability to sell beyond cheap boxes. And that market is shrinking. Employees are to be kept in the dark and work their widget on the assembly line. The only perceivable business strategy being executed is the CEO and "Risk Officer" flying around with (and donating to) politicians, believing they'll get big pork barrel contracts or high level company introductions. Not a winning strategy, even if they had products people wanted to buy and the only ones customers are really buying are the ones that AT OEMs.