Also, some people try to compare darwin or provari or other electronic devices with GGTS. I was wondering what is the connection between those so different devices. GGTS is made to last, it has so many features on it (I will mention those for one more time)-(Side venting holes, telescope, easy clean connector, collector tank, the AD, 4 in 1 connector, mechanical fuse, magnetic button, mechanical device, locking button, engraving, 3 kind of volts function, takes cartomizers, liquid locking option, AVS and its friendly user. I dont see any comparison here.!