Welcome to the forum, we're glad you are here. Disposables are a cheap way to try vaping or a cheap backup. The quality is low compared to a better to setup. As posted above, they use a high percentage of nicotine salts up to over 50% in some systems. Also,with limited flavors they are very low end most are sold by big tobacco who, isn't concerned with your vaping success. I would only recommend them in the short term to see if vaping is for you, should you decide to continue your journey get you a better device and better eliquid choices, you will have a much better experience.