Vape service was good - fast efficient, goods arrived in china. The vape pen was good and is reliable although it did overheat and stop vaping at one stage. I replaced the coil and it worked fine after that. It may be that I was loading it incorrectly. I bought the Kush CBD oil and the Aztec CBD. I found that I was testing positive for THC using some sensitive urine testing kits so I believe that there may enough residual THC in one or both of those products to produce trace THC in urine. That is a serious issue for me. I may possibly have contaminated my samples with "second hand" smoke so the investigation continues but it would be useful to hear if any others have had a similar experience. Can AZTEC and/or the makers of the Kush give any guarantee about there being no THC in their products?