Just bought one today when we stopped at the local B&M shop.
I was looking to replace my MVP2 but the B&M prices were just too high on anything that I wanted but since I just picked up 2 bottles of liquid at a different B&M for cheap and didn't have any clean empty tanks at home that I'd use (that iCiga Ninja tank that's sitting here empty is terrible IMHO) so I asked the owner, her husband and her teenager which was their favorite tank in the shop and they all agreed on the eleaf ijust tank which I thought they must be telling the truth because they have dozens of Nautilus, AeroTanks, ProTanks etc sitting on the shelves but didn't have one boxed eleaf ijust tank, so they were basically praising the one product they didn't have in stock. In any event though, the teenager suggested to sell me the tank off the eleaf ijust mod saying that when they get more they'll replace it on the mod so I walked out of the shop about $15 lighter but with the tank in my pocket.
Gotta say, so far I'd say that it is easily rivaling both my Nautilus and my AeroTank mega tanks for vapor production and flavor. But I've not had the opportunity to test it outside when it's 110°f outdoors which is when my AeroTank gurgles like nobody's business so not sure how it's going to react in those hot conditions but I've been vaping on it all night and so far it's been great, no gurgling, no leaking, just a lot of vapor and some really great flavor even down at 7.5 watts. I've only taken it up to 9.5 watts so far but I gotta say, for me the vapor is simply too hot with this tank at 9.5 watts for my liking although the vapor production is even better and the flavor just as good so I'm sticking to 7.5 watts for now with it.
The air flow isn't quite as airy as the AeroTank mega's but as far as I can tell it's easily rivaled with the Nautilus tanks air flow on wide open so it's really easy to draw on.
The one downside... You need a tiny screw driver to adjust the air flow so if you're one of those people that use another tank with adjustable air flow and is constantly fiddling/adjusting the air flow then this may not be the tank for you since you'll need a tiny screw driver to adjust the screw that opens and closes the air flow to the tank. As for me I use both my aerotank and nautilus on wide open so I just loosened the screw all the way and that's the way it will stay.
If I had to do it over again, I'd gladly buy 2 of these for the same price as what the aerotank mega cost me. Oh and the other benefit of this tank is that the coil replacements are actually about $1 to $2 less expensive than the aerotank and nautilus coils at my local B&M.