When comparing Eclipse Che vs JetBrains Rider, the Slant community recommends JetBrains Rider for most people. In the question“What are the best IDEs for Android development?” JetBrains Rider is ranked 7th while Eclipse Che is ranked 11th. The most important reason people chose JetBrains Rider is:
ReSharper is a popular Visual Studio Extension for .NET Developers. IntelliJ IDEA is a popular and fully featured JAVA IDE.
Specs
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Pros
Pro SSH + terminal
Built-in terminal with root access so you can make changes to your running machines. Being able to SSH into the workspace so you can use a desktop IDE is handy.
Pro Custom commands
You can package up custom commands with your workspace and then use them (or share them) with everyone else.
Pro Docker runtimes
You can choose from pre-configured environments for Java, Javascript, C++, PHP, C#, etc., or you can define your own by dropping in a Dockerfile - makes it easy for simple and complex projects.
Pro GIT and SVN VCS support
Projects can be easily imported from any Git or Svn repository hosting service.
Pro Reproducible environment
Pro Portable workspaces
The workspace in Che includes project sources, IDE and the runtime. So if you hand your Che workspace definition to another user and they execute it they will get everything they need to build, run and debug the project.
Also the runtime is in a Docker container so it will work even if the second user is on a different OS than the original user who shared their workspace with them.
Pro Previews
Che does a nice job to automatically map the service:port running in the Docker container (e.g. tomcat on 8080) to the Docker port it actually uses (something in the ephemeral range). You never need to figure that out - it's just made available when you run your server.
Pro Merge tool for VCS
Pro Open-source
Pro New C# IDE based on ReSharper and the IntelliJ platform
ReSharper is a popular Visual Studio Extension for .NET Developers. IntelliJ IDEA is a popular and fully featured JAVA IDE.
Pro Superior "quality of life" features
Extremely good at filling in all the mindless boilerplate type code while you stay productive.
Pro Fast performant
Rider has everything you want from a serious IDE, but without the bloat. This results in significantly fast performance in day to day operations.
Pro Multiple runtime support
Project Rider supports the .NET Framework and Mono, with CoreCLR support in the works. It also includes templates for creating new projects, and when you create an empty project, it's literally empty
Pro Cross-platform
As well as running and debugging multiple runtimes, Project Rider itself runs on multiple platforms. It runs on Windows, Mac OS X, and Linux.
Pro Decompile code for any .net library
Pro Version control integration
Intellij plugins for Git, Mercurial, and TFS plus Local History of files.
Pro Supports all the development lifecycle
Project Rider can build MSBuild and XBuild solutions as well as DNX/.NET CLI projects, and allows debugging .NET and Mono applications. DNX/.NET CLI debugging and CoreCLR support are coming.
Pro Excellent UI, Features beyond Visual Studio (File Layout just one example)
Pro Free for Students
With a university email, Rider can be obtained for free.
Cons
Con Slow runtime
Online IDE is much slower than desktop one.
Con Not free
Project Rider has a trial version available, but is not free.
Con No support for dotTrace, dotMemory yet on macOS
Support is promised on macOS, but currently only available on Windows. This means it’s not ideally suited for performance tracing and debugging.
Con Is RAM hungry
This product can hang a huge amount of RAM memory, up to 4 GB.
Con Relatively young project
Some bugs are to be expected since it's still a relatively young project.
Con Abnormal key maps
Though Visual Studio Key Map can be installed, it is still hard to find where the plugins are installed when one uses it to open a solution for the first time.