I do not smoke cannabis anymore, but my most recent experience was last summer with a Sativa strain:
I took a quarter ounce of ground bud and put it into two sticks of real butter, cooked on medium heat for thirty minutes. I then strained the butter and discarded the plant material and added a few teaspoons of sugar to the heated, crystal clear, dark green cannabis butter. I let it cool, then proceded to consume the entire amount of THC-laced butter, with a glass of whole milk.
I was in no way prepared for the full on hallucinogenic experience which followed. I had extreme tactile, aural, visual, olfactory... I swear I could feel, smell, and taste cannabis in every cell in my body. I did not move from the fetal position on the couch for six hours. The visual hallucinations were comparable to those of an LSD trip. I overdosed on cannabinoids that evening.