Nice design, nice finish, a bit like hammerite paint. Really stealth, easy to hide in the hand. The mod is a bit on the heavy side, but not too much. Too bad it's only 2ml liquid. To refill, you have to unscrew the top-drip tip part and to put it somewhere, with the resistance, wich may cause some liquid stain... There's a white marking for refilling, be sure not to exceed it, or it will leaked all over the mod, the charging usb port is close to the opening of the tank, so watch out. A bit fiddly to clean up, you have to be carefull not to put water everywhere on it, the glass tank comes apart with three screws, easy to take it out. I've tried to rebuild the resistance, after seeing a YT video and it works, not too difficult, for a horizontal coil (look for CLOOC rebuilding). The battery gives me something around 3-4 hours of vape and it's fully charged after around 1 hour and a half.

I only have these 18350 batteries, so I do not have much experience in terms of batteries. I use them on a mech mod, Le Petit Gros (LPG) and, to me, they are quite good. I regularly let them discharge too much by mistake but they're still in good shape. This pair comes with a plastic transparent box for four 18350. I would recommend these batteries.

I used this module for a DIY voltmeter. The thread is here: https://www.fasttech.com/forums/1913700/t/2485906/simple-voltmeter-the-comeback It's working perfectly, very little difference with my multimeter.

Good quality coil jig. Great for spaced coils. Like said Magnus 616, there's a hidden screwdriver, you just have to unscrew the top part of the coil, nice but not very usefull...

Ok for MTL users. Long enough to avoid heat. The o-ring is not thick enough to fit the 510 connection, so the drip tip is a bit loose.