The 510 from TW was my first kit and got me off cigs 4 months ago and it's a good kit, but I soon had to go to a bigger battery. I wish I had gotten the Tornado to start less battery charging, but the Kit is still active after 4 months, my partner uses them all the time. If you are a moderate vapor they should work fine. Look around for some cheaper prices. The Tornado is the same as an Ego at other places and many people like the Riva better.