just switched from tfv4 to crown and what a difference. the flavor blows the tfv4 away. i am using the stock .25 on 65 watts and i can't put it down it tastes so good. nothing against the tfv4 but i am sorry i waited so long to try something different. i think it's because of the stainless steel coils that the flavor is almost like you are drinking the juice it is so crisp and clean.