Good intro article. We've been using Kodi for years on Windows 8; there's a very good shell called XMBCLauncher (might be renamed by now) which takes you straight in on boot. Advanced Launcher is fantastic for games emulators and Steam games. Control is via a Logitech Harmony or an app on my phone.
I've tried an awful lot of skins and I keep coming back to Aeon Nox 5, it's fully customisable and hasn't let me down yet.
There is so much you can do, it's hard to keep it simple Richard. It is the intention to expand on this and cover more complex stuff going forwards though. I might just try and squeeze the XBMC Launcher (it is still called that) app info in there though as it does make it that bit easier for novices.
Yeah, Nox is really good. I use the FTV skin mostly - it's amazing for content discovery and very customisable too. I really don't like Confluence!
Are there any skins that are usable on the fire TV that allow you to separate kids movies and TV into their own sections like movies and TV shows are now. So movies, kids movies etc.
The one I mentioned above Cha1ky. It is actually based on the Fire TV interface and you could definitely achieve what you want using it.
Each menu section (Menus, TV etc) is allotted up to eight widgets of your choosing which can draw content from pretty much any add-on as well as your library and smart playlists. You can also create your own custom menu items with up to eight widgets.
See photos of my set up on Minix Z64 which is using sections of Netflix, Amazon Instant, iPlayer, YouTube, Super Favourite folders and local content to populate the widgets but, as I said, you can pretty much have anything you like in them.
To be honest, at the time I probably spent more time tinkering with the Skin than I did watching anything but I find it fun!
Also, as Richard says and you can assign any smart playlist to a widget in FTV skin too. There's usually a way to achieve your goals!