What are some alternatives?
When comparing ConEmu and GNOME Terminal, you can also consider the following products
PuTTY - Popular free terminal application. Mostly used as an SSH client.
MobaXterm - MobaXterm is a software that uses a set of optimized network tools included in a single exe file. MobaXterm integrates several network clients with an X server, and also integrates a full set of Unix based commands. Read more about MobaXterm.
Terminator - Terminator is one of the most useful and dynamic terminal emulators for Unix based operating systems.
iTerm2 - A terminal emulator for macOS that does amazing things.
PowerShell - Download WMF. Windows Management Framework contains the latest versions of PowerShell, DSC, WMI, and WinRM for older versions of Windows. PowerShell Module Browser. Search for PowerShell modules and cmdlets.
tilda - Tilda is a GTK+ terminal emulator.