Hi I hope this post also helps someone. I bought the blue starter pack and bought about 100. Dollars worth of cartridges. Thinking this is what I'm going to be using to quit. Sadly for me, using blu, trying to get vapor was like trying to sick a watermelon through a straw. I tried so hard I made my throat sore! I just couldn't get enough vapor. My batteries kept dieing so fast I couldn't keep them charged even with the extra one in the slot! I got absolutely no throat hit feeling with blu. I was so frusterated I started smoking again. Then I had enough. I knew their must be a better way.so I went to the smoke shop and bought my vaporizer. I got plenty of vapor! The juice was half the price then the cartridge for blu and I got a wonderful throat hit. My vaporizer battery is 1300mah so it lasts into 2 days with heavy heavy vaping, and the juice flavors were hundreds to choose from not just a few. I was so completely satisfied with my vaporizer that I was able it quit smoking! I never could have done that with blu. With Blu I was feeling like I was missing something. Namely vapor. It was the most unpleasant experience. I was completely unsatified . But with my vaporizer I am completely satisfied. If you were a heavy smoker like myself blu will likely not be very satisfying. Save your money and time and buy a vaporizer. You will be so glad you did! In fact if any of you smoke blu, I have several unopened cartridges I'm willing to get rid of. Just let me know. For those heavy smokers considering blu, I highly recommend a vaporizer instead.! I'm still able to bring my vaporizer where ever I go by just using its caring case that came with it. Most cases have places for juice and vaporizer and can be carried just as easily as the cig a likes can. I'm completely happy with my vaporizer and now I'm a non smoker!