Only got this today so only time will tell on durability but so far I'm happy with what I got.
It's slim, fits in my hands comfortably and the button position is perfect. Battery cap magnets are strong and there is no rattle there. Fire button rattles a little bit. 510 threads are ever so slightly crunchy but I think they need to be broken in a bit and they will smooth out. TC/VW work fine, tried a few tanks and drippers on it everything works fine and they all look good on it.
Slap a huge tank such as the Taifun on it and it is a pretty damn long setup which makes it a little wobbly when set on a table, bit like a mech tube - more stable obviously.
All in all I'm pleased with this mod, hope it lasts.
Kayfun mini3 looks great on it