JBK follow focus

[avr]

Hello everyone, I am thinking to purchase a follow focus. I see this system

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=628&item=7508189792&rd=1&ssPageName=WDVW

someone knows this unit? works well?
thanks

 

[avr]

nobody have this follow focus?

 

[thisiswells]

it's really cheap.

 

[avr]

Jbk

Jbk

Yes and looks good, but I would know how it works if someone works with it. thanks