[Pada]

I don't think the end user needs to know anything about capacities or other technical details the same way a user doesn't need to know their internet speed.

The end user experience will be having a hot wallet in your computer/phone or online service like coinbase that will handle all the routing, channel setup, etc for you. Like when you use bittorrent you don't need to manually connect to peers, the bittorrent client handles that for you.