In my experience LuCI is very useful for editing configuration and monitoring the network. LuCI offers an intermediate step between the simplicity of lime-app and the complexity of SSH command line configuration. Given this usefulness and the alpha status of lime-app, I will likely install LuCI on devices for the moment, and maybe uninstall lime-app to save space and RAM until lime-app reaches release status.

Would this interfere with the functioning of LibreMesh?

For example, with LuCI I can:
- monitor network traffic quantity and connections
- set static routes for local services
- configure WWAN (internet connection via wifi)
- set a static address for WAN client (this was necessary in one of our networks)
- see what devices are connected
- look at logs
- change wifi SSID, hide SSID, change wifi password, create MAC-based access control list
- install and remove packages

Without LuCI, I either have to:
1) give up on these things,
2) configure them at the moment of compiling firmware and reflash the device, or
3) learn how to do these things via SSH (and forget about having pretty charts on the command line).

cheers,
Patrick