I vaped a bit of weed nightly up to last year.
No smell and no tobacco and great sleeps and chilled me out after work.
Reason I stopped was the fear of being stopped by the police in the morning and getting a drugswipe.
Fail that and you can kiss your driving licence and business goodbye.
Even though it would be 12 hours between vaping and driving and I felt brand new each morning I couldn't find any concrete proof that i would pass the test and the risk was just too high.
The trace limit on the test is almost zero and I found plenty of cases where people were testing positive the next morning after a smoke.
Never got melted on it and it was just a small pinch each evening and I kind miss it but lost a bit of weight through not getting the munchies