ive had one for about 8 months or so, made a cheapo gandalf rig with an f-30, 22mm ammit
tank, and the long churchwarden stem from epipemods (may be found cheaper elsewhere or diy'd, havent looked into it. has a really tight draw though with no way to fix it). i use it daily
the f-30 has been surprisingly good with the exception of the fire switch. 90% of the time it works as intended, 10% of the time it fires really soft. havent figured out why, but its not enough of an issue to be a deal breaker or even enough to motivate me to tinker with it. shipping time sucked, as did the charging cord that was included with it.
overall reasonably solid, would recommend. filled the regulated pipe shaped void in my life nicely