- Open space to promote communication and knowledge sharing (and controlling what people are doing), but at the end you are interrupted every 5 minutes by people walking and talking/screaming/laughing about anything but work.
- People expect you to have Gmail and Slack open all day and to reply in the 5 minutes.
- You are encouraged to go on Facebook/Twitter/Youtube/whatever to like and share the latest news/video/open position/whatever posted by the company. Then you start reading/watching something else that looks interesting and you lose easily 30 min / 1 hour.
- At the end, what matter is how many hours you spend in the office. Nobody cares if you spend a full week on a task because you can't never focus on what you do.