The new eleaf istick 40 watt TC is a little beaudy, they put the tank deck opposite to the buttons but you get used to it. It's better because your fingers wrap around the curved side which feels more snug. I like the Stealth mode so you can turn the screen off and it won't come on while your vaping. You can tap the fire button to sus the screen if ya want. You can flip the screen and turn off the up and down buttons so you don't change the setting by mistake. It's got VW mode 1 to 40 watt's and TC-Ni mode 100 to 315 Celsius. There's no puff counter or duration time but you can lock in the room temperature base resistance. Just have to remember to unlock the resistance if you go to a different ohm coil. I put a new eleaf GS 22 mm, 3 ml tank on it with a 0.15 ohm nickel coil set at 270 Celsius which is a nice warm satisfying vape and the same feel every time. It's just a tad taller than the istick 30 with a slightly bigger 2600 maH battery which has all the usual protection features. Temperature protection for the coil is good and temperature alert for the device is a bonus. Overall a bargain for $49 and that includes a change of screen colour to the new trendy blue. I'm enjoying my first TC unit with a really nice tasty vape time after time.