What are some alternatives?
When comparing MacTerm and Cygwin, you can also consider the following products
PuTTY - Popular free terminal application. Mostly used as an SSH client.
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
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.
Process Hacker - Process Hacker is a feature-packed tool for manipulating processes and services on your computer.
Terminator - Terminator is one of the most useful and dynamic terminal emulators for Unix based operating systems.