I would go for the iTaste VV v3. It teaches you more, and gets you used to the more advanced options available in case you want to get a permanent mod with removable batteries one day. Plus, it's a passthrough which save me many a time when it was my only device for a while. I don't recommend only one device, as you should always have a backup just in case, but with a passthrough, it isn't the end of the world if you forget to bring a back up. The twists, winders and spinners are not passthroughs as far as I know. Also, I believe that every vapere should at least have an ohm meter. Stock coils don't always come in the resistance that they are labeled as. Without the ohm reader, there would have been several that I would have burned straight off the bat because I thought they were a higher resistance then they really were. Vaping in watts mode can also help you prevent burning out a coil too soon. Coils can sometimes change their resistance slightly over time, and if you have your device set at a certain wattage, the device will adjust itself in accordance with those changes.