It's pretty straightforward, easy-to use product with good UI for non technical users as well! I like that you can have multiple environments (e2 e3) running in parallel without having any issues or problems managing them at once time when deploying code changes across different branches - this makes things really smooth now since we're using more than one environment per branch instead just 1 single instance which was before quite painful sometimes due to server slowdowns etc..
Sometimes deployments are slower compared to other tools but not often enough so far i'd say :) would love if they could add some kind of rollback feature into their tool too sometime soon though maybe there already exists something outthere? Maybe better integration between deployment steps such us pushing docker image build step right after successful deploys might help reducing downtime during testing phase while waiting final push command execution by QA team members who usually run manual tests.