GitLab is by far the best company I've worked at and the best company you could work for, as far as I can see. The values that you see in the handbook are really what every single one of my colleagues works and lives by.
People frequently take time off and the team is always supportive, whether it is for a long vacation, personal matters or just to play a newly released videogame. This happens at every level in the organisation.
Asynchronous communication is hard. We were lucky that we've stuck to insisting on doing this well since the very start of GitLab Inc and we're continuously working on making it easier to contribute to documentation and to encourage everyone to do the same.
Interestingly, more and more of my colleagues (and myself included) are moving house to their favorite places to live. Often in other countries. Remote work in itself does not guarantee that you're comfortable enough to make big life changes, you need trust in the company you're working for. I believe that by being transparent, fair and understanding of what makes a good work/life balance, we are slowly achieving to gain that trust.