Welcome to the forum Izzzz, I guess it all comes down to you the vaporer....lol. Some people will change out the atty or coil as soon as the tastes begins to change, if moneys not a problem this is the best for flavor. I'm a bit more stubborn and if the attys still cranking out hits I use it till the taste is so bad or it flat out dies. Some people even clean them depending on what your using. But for the most part a lot of the attys and heads are pretty cheap and you have to figure out whats best for you. Good Luck