When comparing Eterm vs kitty, the Slant community recommends kitty for most people. In the question“What are the best Linux terminal emulators for low-resource machines?” kitty is ranked 6th while Eterm is ranked 17th. The most important reason people chose kitty is:
Very elegant keyboard shortcuts for creating and navigating between tiled terminals within each tab with no appreciable lag.
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Pros
Pro Requires very little memory
Eterm requires only around 9 MB of RAM per terminal instance.
Pro Transparency support
Eterm has pseudo-transparency support. This allows the user to make windows look less imposing (particularly in Terminal emulators which can comprise large chunks of text).
Pro Window tiling
Very elegant keyboard shortcuts for creating and navigating between tiled terminals within each tab with no appreciable lag.
Pro Extensible Kitten framework
Supports plugins to add features one at a time for those who need them. Examples include Unicode input and side-by-side diffs.
Pro Tabs for multiple instances
Operate several terminals from one window using the tabs feature, allowing you to make simultaneous connections to different remote hosts.
Pro Scrollback buffer viewer
Allows for viewing the scrollback buffer in an external pager of your choice ('less' by default, with support for 'more' and 'most'), a huge benefit for turning actions taken in a live terminal session into a script for efficiency or dissemination or collaborating on workflows.
Pro Controlled and configured from the shell prompt within the program itself
No graphical menus to clutter the screen saves system resources and time once you learn that all those options are still available from the command line within the app.
Cons
Con Focuses too much on looking pretty
Eterm focuses a lot on being customizable and looking good, instead of focusing on features or power.