Popcorn Hour A300 as unified media host and server. Perfect solution or red-herring?

Hi .. I am thinking about buying the A300 and have found a mixed bag of reactions to the device on the web. Most of the negative commentary relates to using it as a DLNA based media server. If there is anyone out there that can help please respond. I am a tekky, so don’t hold back on the details
Thanks in advance
K

Current set-up:
Win7 Home Premium desktop (always ON) with media streaming ON and only using Windows Media Player.
This allows me to play all media directly to home cinema system as well as stream to Android tablet, Sony bedroom TV, Pure Evoke Flow, smartphone etc.

Desired set-up:
Ditch the PC and replace it with an all-in-one file host, player, and DLNA media server( to use with the same kit listed in current set-up).

Proposal: Use the A300 (hosting all media via internal disk; holiday photo’s, videos, music) - i.e. no other home PC acting as a host/server.
1 - Local playback via HDMI (easy)
2 - DLNA streaming of hosted content across LAN (seems to be general confusion on this in web forums) Is it true DLNA or just a uPNP device?
Will my Sony TV, Android tablet (ICS), and Pure Evoke Flow just see it like they do with Win7WMP?
3 – Management of A300 hosted files. Can this be done via my Win laptop, and if so how does the Popcorn like to do it?