Yes, depending upon the wine.
if its a red that's going to need to age a while, k-meta helps prevent oxidation. and the levels we use are much lower than commercial wines, which is already at a safe level.
finings are very helpful in whites, and even reds. chitosan based finings like super-kleer are more natural alternatives, and you won't strip flavor by filtering mechanically.
sorbate isn't a bad idea in some wines either, but if you sorbate you must sulfite as there's a very specific kind of infection (I think its of concern if a malo-lactic fermentation was done?) that can result in wine stinking of geraniums.