Same low latency as on desktop over WiFi, perfectly fine, light code editing in Vim is butter smooth. And if connection breaks I just get back to my tmux session. So, can anybody tell what I miss?
With Blink, which is Mosh for iOS (I'm the developer @BlinkShell https://twitter.com/BlinkShell), you also get full keyboard support, with Caps as Ctrl, Alt as Meta, or any other combo you want to have. And a great terminal with full configuration of color themes, fonts, etc. beyond the standard included with the app. Everything a real terminal should have.