I have it and use it regularly. Couple observations:
It works just like the Vapor Flask clone, same chip.
It has Nickel Purity as a setting. This means you can use titanium or other materials and keep the proper temp. You can use the others with these wires but must reduce temp to match resistance curve.
You will strio the wood screws that hold it together. I stripped the top one by screwing down an atty too tight. Just causes a gap bit it could be an issue from an asthetic standpoint. Do not try to put a longer one it; the positive lead is just below the screw. Ask me how I know!
The 510 is fixed. It is also reverse thread. That sucked to figure out!
The resistance will read around .04 ohms low. An issue using nickel on a
rba with limited room as you can only make so big a coil to reach the lower resistances. It will fire a .06 build though.
Some report the mod will not give a low battery warning, I never let my battery meeter get below 3/4 full but I have taken the battery out and seen 3.6 before so I would agree.
Overall I use both the Zero and my VF daily and love them. SXK really did a noce job with this chp and mod for a clone. I like the form factor and during a normal work day it will last all day. For weekend chain
vaping I will change the battery after around 4 hours.
HTH,
Sean