My previous HT setup was:
[NAS + Media Server] = Intel NUC running Lubuntu + Samba + UMS with a bunch of USB disks for storage
[Renderer] = Sony BD player (over LAN)
[Controller] = BubbleUpNP running on Android devices (Tablet and mobile phone)
With this setup I can select any DLNA Renderer on my network (e.g. Sony BD) and point it to any Media Server on the network (e.g. UMS on NAS) in any combination of MDR/MDS.
However, I wasn't happy with cinavia, general slowness and occasional compatibility issues on the Sony BD.
I've installed and configured latest build of LE on a NUC pointing it to external media library which resides on NAS, across DLNA (LAN).
Due to inherent philosophy of KODI as a "one-box" HTPC the setup kept bugging me about defining my Music, Pictures, Video, etc. libraries until I deleted all categories but undeletable ones.
LE produces excellent 1080p video and allows bitstreaming of HD audio across HDMI to the AVR -> TV.
Unfortunately, it's unreliable as DLNA renderer - sometimes refusing to show up in the list of Renderers on my BubbleUPNP controller, and I don't know what's causing it disappearance and reappearance.
Bottom line - is there a way to produce a "Headless DLNA Renderer - Client Only" (non-HTPC) version of LE which doesn't presume that it has its own media server running side by side, but focuses on UPnP playback and reliably shows itself up on LAN as a DLNA client?