I've had my Istick 30w for two years now and decided I'd like an upgrade. I decided that the uwell crown looks like the best tank to meet my needs but need to get a new device as 30w will just do it no justice. This is where I need the help. There are so many out there recommendations would be appreciated. I don't want anything that looks and feels like it belongs to a power tool. I'm looking for something reliable easy to use. I guess upto about 150/200w (depending on the coil being used), no idea about the single/dual power or tc/vw?