Yes, make sure you clean with ISO. Then initial burn off period is very important. I just pulled the Lower bowl/atomizer off my water pipe and blew air through the top. Lots of fumes came off the device... all the machine oils and stuff. I have repeated this twice and every time the fumes are less and less.
I got the 18mm version and there is a slight bit of wiggle room between the water pipe's joint and the atomizer. I was told this will expand when heated and not wiggle as much. Currently it is sitting a little off kilter in the water pipe because of the wiggle. I am resetting the connection periodtically so that when it does start to expand it will rest more evenly/level on the water pipes joint.