Does anyone have any recommendations (preferably based on experience / running actual units themselves) for motorised roller blinds? 

I had the one in the link below in mind, but if anyone has any better options let me know. i have a large roller blind in the main hallway of our house, the roller unit (that has the manual 'bead' pulley system on it) has crapped out and does not hold the blind "up".  so instead of going manual stylez again, i'm after a motorised (/motorized) unit that I can put in its place. i can wire up a 12V system myself easily enough, plenty of ceiling space to run wires - or even go as far as adding/programming up an arduino or esp8266 if needed as want to tie into my openhab system for scheduled open/close (or what 3rd party oem solutions are out there that will work?) - possibly even add light sensors to automate the open/close. of course, the entire purpose of this thread is coz I'm completely open to any suggestions on what anyone else has done and had success with (without spending an arm and a leg)  I see 'somfy' seems to be a bit of a market leader in this area, but it is pricey kit.  prefer easy control using wifi rather than rf, but if rf + some sort of control unit -> ethernet is just as easy (especially if that control unit can assist in other areas of home automation), then i'm all ears.

http://www.ebay.com/itm/Blackout-Blinds-Remote-Control-Motorized-DIY-Kit-/190516574053

Cheers