I have spinners, twists, and a vamo.
Here are my pros and cons:
Spinner:
Pros:
-Easy to read spin dial, the dial is threaded with the voltage indicator on the dial, and the volts on the body.
-Small and compact(compared to a vamo)
-eGo and 510 threading, no adapters needed for most liquid delivery devices used.
Cons:
-Rather fragile, the wiring solder points inside the head are rather fragile, a small drop could brick your battery
Twist:
Pros:
-Small and compact(compared to a vamo)
-eGo and 510 threading, no adapters needed for most liquid delivery devices used.
-More robust than the spinner, takes a bit more of a beating
Cons:
-Voltage measurements on the dial, this wears off very quickly
VAMO:
Pros:
-Variable Wattage and variable voltage, VW allows you to set a desired wattage to provide a consistent vape regardless of the head resistance
-Fairly robust, some o-ring issues with the positive connector, but easily fixable
-Battery voltage indicator to see the remaining voltage of the battery
-Can remove the bottom section to make the device smaller.
Cons:
-Although it's ego threaded, you will need an adapter for T3s.
-The mod is much bigger than the spinners/twists.