The screenshot looks a bit like Chef's Automate. The config example looks like Concourse's config ( http://docs.screwdriver.cd/user-guide/configuration/index#ya... ), but it doesn't look like they have task files. They should write up a comparison to GoCD, Teamcity, Concourse, Jenkins, Chef Automate, etc. It can be pretty hard to evaluate these things without losing a month.
In my case, I've been using CircleCI (mostly good, but a few issues make it a non-starter), CodeFresh (awesome, but very new, still needs work), and the new Jenkins. Wanted to look at Concourse and a couple others, but just don't have the time to test drive them in any real capacity.
Increasingly I think us software devs need to share our battle-won knowledge instead of just trusting the marketing blurb on a project page. Much of what I do these days just amounts to making guesses for suitable tools/projects based on heuristics and gut feelings instead of actual experience.
Hopefully something like StackShare will gain in popularity, and we can start sharing our experiences more.
Now time to check out Screwdriver!