Summary: I bought this mainly to stream HD (.mkv) movies and bittorrent client. And it is doing a good job at both of them. there are couple of small glitches in the upnp server software but nothing of a big deal. over all it is working as I expect it.
Pros: TS-209 Pro II is a good machine, it was easy to handle, it took only the time required for the firmware and software to be installed.
Cons: I hated the part where you have to intialize the harddrive and you lose all your data. The fan noise need to be improved. and it is a bit pricy. and for teh above reasons I gave it one star less.