I use it on a team of 3. The main reason for not using Docker is 2 devs use mac full time, and I have a macbook air for when I'm not at home w/ my Linux desktop. So we'd have to use boot 2 docker anyways, which uses Vagrant. So might as well just use Vagrant. Its not perfect. A lot of file watchers do not work right or are slow. "Git status" just hangs the box, and nodemon / pm2 watch don't work unless I enable a special "polling" flag. But it beats the status quo of on boarding a new dev & telling them to manually setup a dev environment. On boarding new developers went from months to an hour, which is mainly due to Ansible... but Vagrant is a means to being able to test Ansible scripts.

Another gripe is we have to edit the Vagrantfile & adjust the CPU / memory usage for each developer. There's no way to have a local override AFAIK.

We also have another Vagrant box that emulates our IOT devices, which runs X server. That's been a huge productivity gain in that we can just change code live, instead of having to rsync code to a physical device to test it. .