I installed the latest testing ISO, found a few things I thought should be changed.
When first starting Konsole, the default character encoding was set to US-ASCII. I would think it should default to UTF-8, otherwise many fonts won't render correctly.
The default text editor is set to Kate. While Kate is an excellent editor, it might be a bit too complicate and advanced for most user's need. Kwrite might be a better default. As it's being installed anyway, it should just be a matter of setting it as default.
There currently is no character map application included, nor any Plasma-friendly one in the repos. I've already put in a package request for kcharselect which is the default in most spins.