A lot of work to do..
Example : I change the autoscaling trigger in web UI interface. After a few second, my autoscaling trigger is changed (checked).
But if I save beanstalk environment configuration into a file, the change I made is not there :-(
Maybe working wih UI is not the best option, but it's very convenient to test stuff without terminate/recreate env from scratch (things I have to do btw when I commit changes in files, I have to check if the behaviour is the same)
A lot of time lost, but it's the price to have reproductible environment and 'infrastructure as a code'