Thanks! I am very interestesed in this, after looking at this and phillip blooms website he reviewed a much cheaper one ($139) and says it does the job. Heres the link, let me know what you think.
It probably works, just remember you always get what you pay for. If you buy a cheaper lens compared to an L lens, while they both have glass and a focus ring, you're going to see the difference in your images when using an L lens over the cheaper model. Same for the cheaper follow focus,
I purchased the Redrock micro follow focus, when you think about it is just as expensive as my external SmallHD monitor. But you know what it's silky smooth and well built. Would you get the same build quality for something $700 cheaper, I sort of doubt it.
It pretty much comes down to if you're a hardcore filmer or something you do as a hobby occasionally shooting video, if it's the latter the cheaper follow focus would make sense. However, if you plan on taking video to its max, don't waste your money buying the cheaper model then regretting not purchasing the higher end follow focus first.