Point is, Faruk makes one hell of a presentation...and honestly, one hell of a bobbin.
It's an automatic bobbin that provides a constant tension (if you want it to) and retracts thread for precision control.
The best way I can describe the feel is kind of like one of those "zingers" you attach nippers or a stream thermometer to, but retracts much more gently. The best part is that it takes pretty much any brand & size of thread, and lets you use the factory spool. You don't have to use special spools like you do with the Nor-Vise automatic bobbin.
I considered making a video to show you how it works, but there was already a great one on YouTube, and I could never recreate the excitement in its magnificently creepy monotone voice-over.
So, is this little marvel of engineering something that is absolutely necessary? Probably not. But once you get your hands on one you're not going to want to be without it. Unless you got the munchies, then Cookizzas are clearly a much better option.
The Ekich Ultimate Bobbin featured in this product review was not provided at no cost by the manufacturer; in fact I paid *gulp* $100 for it last Saturday and am kind of pissed I didn't save at least half that money for pizza and/or beer. At the time of writing, I currently hold no association with Faruk Ekich whatsoever - however if he wants to adopt me, I'd be willing. (He made me write down my name & email address on an index card when I bought the bobbin, so I'm hopeful!) As with all independent gear reviews at Troutrageous!, I try my best to keep my reviews honest and unbiased.