Kiva Systems has been renamed Amazon Robotics: perhaps they don't want anyone to remember the reputation that they earned through this web site.
It sounds like they are trying hard to just be another part of Amazon, so if you don't like what you read about working at Amazon, you will probably not like working at Amazon Robotics.
You might sleep in hotels a lot.
You might waste a lot of time walking around huge warehouses.
Any bad news about the company will be all over the business news.
Only a few of the early employees remain. Mick Mountz is no longer running Amazon Robotics, he is off working on some sort of special project.
Keep your phone charged and near your bed so that you can be ready at any time of any day to help when millions of people can't get stuff.
You will be busy helping millions of people on all of the big shopping days.
In your salary review, your manager might give you negative feedback from your coworkers.
If you say nice things about your coworkers, they may be considered more valuable than you, so they will be less likely to be laid off than you.
Don't expect a promotion to get past the big HR organization on the west coast. If you smile a lot while working really hard, you might get rewarded with an engraved rock.
You will be part of a warehouse operation.
You might get to see warehouses all over the country.
Your users will be people who work in warehouses.
Your AMZN stock won't vest at a constant rate, so be prepared to stay around for many years.