Haven't used the indiefocus, but the RedRock works fine.
Only complaint about the RedRock is the set screws work loose on the gears. Need to re-tighten about every other day of shooting. I've also worked with the Zacuto FF
http://store.zacuto.com/z-focus.html better design, but it's a bit pricey. "You get what you pay for."
I've watched the review:
http://provideocoalition.com/index.php/freshdv/story/freshdv_follow_focus_system_reviews/Indiefocus looks like a poor design. ?? The RedRock & Zacuto can be adjusted with fingers on major adjustments. Allen wrenches on set-screws.
It might be too late to offer this advice, but I'd thought I'd throw in my 2 cents worth.