The nice thing about starting on a Twist/Spinner is that if you decide to move up, they make great backup devices or a "on the go" pv so you don't have to worry about losing or breaking a more expensive mod by carrying it all over the place. Even if you want to start on a good mod ... I'd recommend one for a cheap vv backup honestly.
losing? sure. breaking? nah, if it's mechanical...you can fix them relatively easily....then again i have multiple mods to carry......