I like that it's easy enough anyone can use, even if you're not tech savvy! It also has an intuitive interface which makes setup quick & painless (and allows me as someone with no technical experience at all).
The only thing is there isn't really much of anything out here yet - but this seems more niche than mainstream so we'll see how things develop over time :) As far back-end goes though everything works well together seamlessly without needing additional software or plugins/extensions etc., just plug 'n' play straight into my media server using UPnp protocol support built right inside LMS itself!!