The coolest thing about this decanter is how it decants. You place the entire decanter on top of the bottle of wine before ...
As far as glasses are concerned ... certain decanters more fitting for your bar cart than others. For example, wine decanters create aeration, so they are usually taller, capless and more fragile.
At the end of the day, a decanter serves to introduce air into the wine and separate out unwanted sediment. You can actually achieve the exact same result by pouring the wine into any other glass ...