When I first got mine it was the first 3 piece unit I had purchased. Thought it would be great to have something closer to the size of a regular cig and able to charge on the go. It did serve those two purposes as well as hoped however I was disappointed with it due to the size of the carts. I take long drags and I was getting the burnt taste after just 4 or 5 drags and then having to top off while the majority of liquid was still in there and just not wicking fast enough.
About 2 hours ago I tried my Intellicig carts on the 702. They have what I assume is the new bigger inner cart that is coming/already out for the m4xx/702. Now I'm looking forward to starting to take the m702 as a backup when on the go because I know for the last week and a half I've had no problems
vaping the Intellicig carts dry before needing to refill.