I'll keep this short and simple. The vape is about the same as my PT2s. Very nice clouds. Top filling is nice to have at work as well as the PC tank so I don't have to worry about the glass, although I can't vape some of my juices....no biggie. The one thing that bugs me is that the little spring thingy that is supposed to stop it from leaking when re-filling doesn't work too well. It literally drips from the 510 when I take the top off. I have to blow through the tip a few times into a paper towel to clear it out. So if any of you get it do NOT take the top off to fill it over your couch....don't ask me how I know.

