Welcome to the forum Maggie!
The iTaste vv 3.0 is a nice device, certainly a step-up from a Blu.

Having longer battery life, more power and the ability to customize to your own
vaping needs makes a big difference in the effectiveness of using e-cigs as a way to get off of cigarettes.
The members here have a wealth of knowledge and experience to share. If you have any questions don't hesitate to ask them.