It probably depends on what you're doing, but I've found Vagrant extremely valuable for doing sysadmin work. I do a lot of work with Chef for various clients, and Vagrant makes it trivial to test. From a clean Ubuntu or CentOS VM to a running system in a few minutes. I could see a lot of benefit to using this for application development and testing as well.
This was the original reason that Mitchell and I started the project. We were Rails consultants at the time who just got sick of juggling application environments.
Comments
I'm not sure what your opposition is.
It probably depends on what you're doing, but I've found Vagrant extremely valuable for doing sysadmin work. I do a lot of work with Chef for various clients, and Vagrant makes it trivial to test. From a clean Ubuntu or CentOS VM to a running system in a few minutes. I could see a lot of benefit to using this for application development and testing as well.
This was the original reason that Mitchell and I started the project. We were Rails consultants at the time who just got sick of juggling application environments.