arizer solo 2 i bought both prefer the solo 2 have more power and better vape quality they are on sale at puffitup i think. like always though i advice a crafty over a arizer solo 2, just because its way more reliable in the long run. broken stems from my arizer and such! also if you do decide to get the arizer look into PVHES High Efficiency Vortex Stems make it way better!