So I've only used cartos and a vivi nova and a couple of my friends mods so my experience is limited. The Vivi Nova was just terrible but I can't say mine wasn't a clone so I probably don't have 100% accurate info on it. But from what I've read on here it seems I had the same results of many others. Now I just purchased a new AGR tank with an XL LR Boge Cartomizer and I have got to say: This the best device I have used so far hands down. I had assumed it would be just like using regular cartomizers (I have the standard Boge LR cartos) albeit much more convenient. But this thing seems to have much better vapor production and a slighty better taste. Perhaps it's just the XL Cartomizer or maybe it's that the Carto is 2 ohms instead of 1.5 ohm standard ones (which is probably the case) but it seems to perform substantially better. I had gotten nervous after reading some of the problems MANY people seem to have with the AGR tank ie leaking, flooding etc. and I had some of that at first mostly due to inexperience but once I got this thing working man it works WELL. I really just hope I have a consistent experience because if so I won't be needing anything anytime soon (except for that v2 Vamo I have my eye on
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