is this method the one that makes the tastiest pot of coffee?
Depends on who you ask. I like vac pot, aeropress, moka and brikka (a moka pot with more pressure). Perhaps turkish too, but I haven't tasted a real turkish brew yet. All these pots are comparatively cheap, so if you buy one and it isn't good enough for you, you can try another next month. Well... the Cona vac pot is a bit expensive, but not compared to an espresso machine.
The only thing you should avoid is buying an electric filter brew machine. Except for the Technivorms of course - well, that´s what people say. But they cost as much as, or more than, the Cona vac pots.