When comparing OpenSSH vs Terminus, the Slant community recommends Terminus for most people. In the question“What are the best SSH clients for Windows?” Terminus is ranked 11th while OpenSSH is ranked 12th.
Ranked in these QuestionsQuestion Ranking
Pro One of the most trustworthy development teams on the web
The development team of OpenSSH is part of the OpenBSD ecosystem. Their implementation is basically today's technical reference for any SSH client.
Pro The Reference SSH Client.
If you find samples or tutorials about SSH, they almost always refer to OpenSSH. It bascially defines what SSH is.
Pro Standard implementation that documentation for all other tools assumes you have installed already
A lot of other tools (e.g. git) are based on this for file transfer.
Pro Available on virtually any platform
macOS. Windows. Core component on any Linux flavor.
Pro It looks just beautiful
Pro It's open source
This helps the community to move software forward and to make it even better.
Pro It comes with plugins
Pro Is cross-platform
Even the question was "...for Windows", it's nice if you can use your tools over different platforms.
Pro Under active development
Hyper development has basically stalled out.
A lot of things can be easily configured, e.g. color theme, size, window frame behavior, tab location, cursor style, hotkeys, etc.
Pro Integrated GitBash, Cmd, PowerShell, and WSL
Pro Integrates with git-bash with a simple toggle in the interface
Pro Excellent interface
At start opens last session terminals. Also has terminal tabs.
Con Command line tool
It can be difficult to use from a command line interface.
Con Some functions still fail
Con Slow with input lag
Sadly, Electron strikes again. The input lag is noticeable and annoying. Startup also takes like 2 seconds or more (On an i7 from 2016 with SSD).
It's huge. The amount of resources it consumes is not justifiable.
Con Cannot remove the default profiles
For example, you installed Arch Linux for Windows Subsystem for Linux some time ago, but now you have deleted it and currently use Ubuntu on WSL. After that, if you decide to try this terminal emulator, you'll find Arch there without an option to remove the profiles already included in Terminus.
Con Easy to be confused with different brands of the same or similar name
Like Terminus (Russian production company), Terminus (font) or Termius (SSH client).
Con No multi window support
Can't split tabs into multiple windows.