HDMI Splitter / Extender

[beanbag]

I want to show my Sky HD picture in my bedroom and to do so, I want to send the signal from my sky box downstairs, to my bedroom directly above.

Multiroom is not an option as I live abroad and I'm technically not allowed to have Sky

I've found this unit from ESYNiC which has a splitter at the sender end so there's no need to use an HDMI switch.

http://www.amazon.co.uk/ESYNiC-Ethernet-Network-Ex...

Has anyone got any experiences with these and are they any good? Also, do I need to use Cat 6 or will Cat 5e cable do? I've got 20m of cat 5e lying about so it would be good to use just used that instead of buying more cable.