Pros
Work from home is the norm. PTO is good, but be careful of taking it - if you take a normal 2-week vacation like at other companies, don't be surprised if you make the next RIFF list.
Cons
Being treated like cattle and the crazy escalation-centric nature of the company to get anything done. Do you like furloughs? Do you like "donating" PTO days so that the US CEO can make his numbers? (which are dubious - they will claim "we're losing money" when they only achieved 6.5% of their 7% target which is still profitable). Do you like absurd health care costs that wipe out the pitiful salary increases that you may or may not get because the company has decided to suspend due to (crisis of the moment)? Do you like an old school Napoleonic management structure where your are told to take actions that are not in the best interest of the company or your client, just because the exec thinks he is right? Do you enjoy a toxic management culture where costs force you to fight other departments that are sabotaging your account and you must escalate several times over months to get it fixed? If you answered yes to any of these questions, Atos US is right for you. The salt in the wound is that Atos US will ask you to make all kinds of crazy personal and financial sacrifices "for the good of the company so we can hit our targets in H1/H2", they promise to reward, but then go acquire another bottom feeding IT company and say "oops, sorry, we don't have the $$$ to make you whole. But please welcome our new 'Whiz Bang Company X' colleagues."