Have this for 2 weeks. What is great in it? 1.- It has full range wattage adjustability in TC mode. 2.- You set the base resistance. NO "New or same atomizer?" With these 2 it already belongs to the class of best TC mods. 3.- Temperature and wattage are treated equally in the menu and in the screen when you are in TC mode. You press "+" and "-" to switch between temperature and wattage adjustment. As far as I know this is a unique feature. 4.- The box itself is pretty solid and seem to be build to last ages. 5.- Battery doors are SS and fit snugly in the mod. 6.- Very good 510 connection. It seems to be SS. Copper spring loaded center pin. 7.- It is smaller than the sx-mini M-class. Slightly taller than the VT-40 but slightly narrower. 8.- Screen is very clear and not overloaded with useless information. 9.- No stupid puff counting or puff time. 20 sec cut off. 10. No leds. It vapes very well and really regulates wattage and limit temperature. I haven't a digital oscilloscope and didn't found a review "with numbers". So, I can't say nothing about accuracy. The only drawback a can think of is that there is no temperature coefficient adjustment. No titanium. Highly recommended.

Received today. The silicone part of this has no hole for air flow redirection. As a result the air flow is blocked. I also have SKU 4861000 and they have the same defect. There is no proper silicone parts for Griffin 25 available in FASTTECH.

Very good tank after some tinkering. Received with the glass tank glued to an o-ring. Had to replace the glass tank.

I'm very disapointed with this. The chip rocks, but the painting is very, very cheap. The sigelei mini has the same chip and is by far a better choice for 1 dollar more.

I bought these to recoil protank heads. Unfortunatelly they had an strong metallic taste and I stopped using them.