I like my Protank so much I ordered a Protank mini. My Protank is the only delivery device that has given me zero issues. It gurgles a very little bit when it gets really low on
juice, but nothing major.
It is a bit awkward on a regular eGo battery. My 650 mAh battery and Protank looks like one of those huge lollipops. My twist battery is a bit better looking, and it vapes so much better due to being able to find tune things.
If you want to get the most out of a Protank, strongly consider a mod like the Vamo.
I used T2s for a while because they were the only
tank that would thread on my eGo type
batteries without an adapter. Nothing but problems - dry hits, burned my lips, leaks from various places.
I really like the Evod too, but it's a bit too small in volume.