I had some other Ecigs before I switched to V4L...My favorite! Needless to say with the other brands I also used different juices from different suppliers. I just recently started buying V4L juice and I noticed that my cart lasts longer and longer. With the other juices (very popular suppliers) in less than a day I want a new cart...the cart with the V4L juice has been satisfying and still seems like new after a week. It's V4L all the way for me now...the best product all the way around. Thanks V4L for being the best!