My first reaction when I saw the title of this thread was "DON'T!". Then I saw that you already have. I haven't used one of his bobbins... yet. I have heard about them from many sources. Some people get on with it many don't. It is a tool that is designed to do more than just hold the thread. If you are using the techniques this bobbin is designed for, you are not a beginner.
There are no techniques that this bobbin incorporates that can not be done without it. Are they easier or harder to do with this bobbin? I don't know yet. When I see Marc next I'll extract one from him and find out. What it does strike me as is the fly tiers equivalent of an adjustable spanner (sorry "wrench" to those who use less specific English) No engineer would use one to replace a full set of
wrenches spanners (Sorry I can't be that unspecific, wrenches are used on pipework, nuts bolts and set screws are tightened with spanners), They are fine in an emergency, but don't replace the correct tool. (Just as an aside the adjustable spanner was invented by Edwin Beard Budding, who was also the inventor of the lawn mower).
If you can return the bobbin holder, as Poopdeck suggests, I think, you should do so. I have used Tiemco bobbin holders for 25 years, on and off. They last, they do what a bobbin holder should. They are, also, what Marc used before bringing out his own design. For a beginner they are everything you will need. You should be able to get three for the price of Marc's bobbin holder; if you shop around.
There is another point. If you bought it from a shop that knows you; who are aware that you are a beginner, then I would be careful in that shop. The good fly shop keepers I know would not have sold you that bobbin holder. They would have looked first at your best interests, not their bottom line for the day.
"Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end"