I recently upgraded to Provari, i was so pumped to get it!!!! right from beginning i notice it just did not preform the same as my other devices (china made) It is just a weak device and kinda a cold vape but because it cost so much i want to like it!!!! To make sure my device was not faulty i tried my friends provari and it was equally weak as my own. Thing feels solid tho i could vape this piece of garbage for ever!!!!!! Same your money friends and buy something else