While I have only tried the potion of gaseous form once I was bitterly disappointed with it. I drank the potion while surrounded by Meenlocks. The intent being to get away from the demons and get to a vantage point where I could use an area of affect attack against them. As soon as I drink the potion though, and tried to float past them, they immediately attacked me as I was floating by them, and I took damage which was annoying to say the least, and not what I was expected, since I was supposed to be in gaseous form, so that’s something Larian Studios needs to take a look at.