I use iSH too and love that I have all my standard CLI tools available, or can just install ones I want.

But using the ssh client in iSH to interact with TUI interfaces is a less than optimal experience. Many nice UI affordances that something like Terminus provides are lacking. Like using swipes as input, key management tools, or using location monitoring as a trick to keep it running in the background. Definitely excited to check out this new Echo client.