I'm impressed with the iStick family, not only for stealth vaping but as a main mod. There's nothing I can't do with them yet (20W, 2-30W, and 50W coming)...well, except a .2 ohm build...but that will be addressed with the 50W. Batteries last, pushes the power, and it's pretty accurate...and I got my 30W for $30...so there's that too!