Perhaps I should have said: " Could someone contrast & compare the different qualities of a cup from each preparation" I bought one of each today, got teh SwissGold for $10.
I'll toss out an opinion..
SwissGold is something like a french pressy - pourover vibe. It shares qualities of each and gives you a 'standard' cup of coffee. If you wanted a
cup of coffee you can use this prep.
The Vietnamese brewer doesn't give you a cup of coffee in the typical sense. It gives you a really deep coffee that I can only think to compare to things like espresso, moka pot, and Aeropress even though it's a lot different in flavor than those preps.
Sort of hard to describe really but that is a basic outline.