I bought this when I bought my Buddha cape. I was expecting it to work as poorly as my first pen vape the atmos raw.However I was extremely surprised to learn how well this apx works.The heating element is located under the herb chamber in it’s own separate location.This means unlike most cheap portables your herb using setting on a heating coil burning.This portable actually vapes! I have turned this into my daily driver at work and out and about. Turn it on low and you get no visible vapor. Great for sneaky tokes inside at work.Turn it to high for large visible clouds of vapor. I haven’t tried the dab chamber yet. But as just an herbal vaporizer, you can not go wrong with this!