I have just stepped up from a standard 510 to a Riva that I got from Freedom Flights. It is great. All day on one battery! Great to be pretty much cut free from the charger for a day long vape. When I am at home, I have been dripping and really like this form of vaping. But when I am out and about I have used only cartridges. I am going to get some cartomizers to use in the car but don't know which ones are the best. I know that everyone has their favorites but am confused by all the different comments. Boge, Joye, soft cap, hard flat ends, easy to fill with syringe, condom. What is the best and easiest for a newbie to try? I don't want it to be a bad experience if it doesn't have to be. Help on making the choice for a beginner would be appreciated.