I use atty's for taste testing (mostly ) so I don't wreck a carto , only to find that I don't like the juice . I also use some carto type tanks (Array's , both the Act3 and the Act 4 0 I like these alot , but they do seem to clog the carto's after 3 or 4 days of steady vaping . Latley been using some of the Vivi-Nova's , both the regular , as well as the mini . I like that they seem to last quite awhile , easy to fill , and are fairly cheap . The big bonus with those , is the ability to re-wick/coil them . Only costs about a dime to 20 cents to re-do . Don't get any cheaper than that . Although , I find that juices a bit heavy on the VG tend to not wick as well , and sometimes you get a dry hit . You can always thin it down , if that's the case . And lastly , I have , and use several re-buildable atty type tanks . I have both a Penelope , and an Ody , from GG . Like them both , and fairly easy to set the resistance , when making a new coil/wick . Well , hope that helps alittle . Good luck.