On Windows, setting up a dev environment can often be a pain in the ass, so if you're locked in for wtv reason I can see the pain point they're trying to alleviate.
Even then though, with things like chocolatey nuget[1] and cmdr [2], windows is heading towards parity.
Visual Studio Monaco is really the competitor to a product like this. It's a browser based version of Visual Studio that can be tied into other cloud services.
Even then though, with things like chocolatey nuget[1] and cmdr [2], windows is heading towards parity.
[1] https://chocolatey.org/ [2] http://gooseberrycreative.com/cmder/