The iStick Pico 25 is one of the more recent versions of eLeaf’s already popular Pico line. This one being released in 2017, the gimmick being that it accepts up to 25mm tanks, compared to the original Pico’s 22mm. It’s mostly constructed of solid plastic and metal, it has a solid hand feel and comes in a few different colors. Pictured is silver/black. It’s one of the more “cloud chucking” vapes, in comparison to the pen style or cig-a-like models. The device has a sufficiently large screen and a push button to fire. The screen keeps track of what wattage you’re vaping at with buttons to change it on the bottom of the device. It keeps track of other information such as puff count, voltage, ohms and more. The Ello tank (which is the one eLeaf packages with it, although you can use any appropriate tank) can handle up to about 75% VG (Vegetable glycerin), pushing beyond this is likely to cause problems although you could get away with 80%. The tank comes with two sets of glass, one for 2ml and one for 4ml with an adaptor, after I put on the 4ml glass I never went back, although it’s nice to have the spare. The mechanism to fill the tank is the top of it sliding back to reveal a fill port, which is broad enough to allow air to escape even when filling with glass droppers (although I’ve found unicorn bottles/PET dropper bottles easier to use). Additional fluid can be dripped right onto the coil for extra vapor production and you can vary the air intake. If you haven’t used a proper “mod” (larger more advanced e-cigarette) before I think the Pico 25 is a solid choice due to the fact that it’s still relatively small, using a single 18650 battery, it’s like a taller thinner cigarette pack. Quite sturdy (have dropped it many times onto concrete at this point and it continues to function fine) and can handle most of the ejuice you’ll come across. Although these are sort of side benefits to my primary point that most cigarette smokers who try to vape use gas station cig-a-likes or cheap pens which don’t offer the same nicotine delivery profile as more advanced mods (see: https://www.ncbi.nlm.nih.gov/m/pubmed/24569565/). The Pico 25 allows a fast delivery of a high volume of vapor and thus nicotine, mirroring the nicotine profile of cigarettes more closely than older ecigs. Similar to other mods like the Smok Alien (although the Alien breaks more easily IMHO). It’s important to keep in mind the level of nicotine in the juice, as older pen and cigalikes could comfortable use even up to 24mg, models which produce this level of vapor usually encourage people to stop at about 6mg, although nothing prohibits you from putting higher concentrations in. The mod has a built in battery charger although it’s not recommended to use it; an external battery charger is safest and will give your batteries the longest life. If you’re coming from cigarette smoking, there is still a learning curve. As this study indicates, experienced “vapers” end up with higher blood concentrations of nicotine compared to non-vapers (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469966/). I contrast my use of this vape with cigarettes. Since switching my asthma is far less irritated and my breathing is overall better. My voice recovered. If you’re a cigarette smoker it’s a solid first choice. If you’re a casual nicotine user of any type it’s a solid device to use at lower nicotine levels to pair with many other substances (especially if you’re a “only smokes while drinking” person).