Day 1 down, all I can say is Tobeco knocked it outta the park again. My only complaint so far is damn Im going through juice! I just filled the tank for the third time since I woke up today!! Vape-wise though this thing rocks. Its doing everything my Derringer did on point and I don't have to keep dripping so I guess its not really a complaint. My Cthulhu, the tank would at least last a whole day but man that thing was so picky, it was like 4 great vapes and then dry hit city, open the top and re-do the vacuum and it worked again. It was such a pain, but the KF5 has been perfect since the very first draw (not including that new cotton taste of a fresh wick hah). Damn you KTMRider Im gonna end up with four of these like I did with the KF4 last year all because of you! 