I bought my smilomizers back in March. They are giving me an average of 3 months of life refilling once a day. I have been very satisfied. Since I still have 10 or then left, I guess I am safe for a while.
My batteries though are starting to show sign of wear, they will no longer last a full smileonizer. I find this a bit expensive, after all that's only 150 recharging... Overall though I find the Zeus so pratical as 'hands free'
vaping that the small added cost is well worth it.
When I don't need 'hands free'' I much prefer my Reos .