As a fan of the Billow V2 I sort of new the Billow V3 would be good as well, but I chose this RTA bc it was on clearance and I noticed the large juice holes and the fact is was dual coil. It is also 25mm diameter which is a great size to fit on mods without overhang. If you use the right amount of cotton and close the juice holes while you fill it, I don't think it will ever leak. I put it in my back pocket at work and despite constantly up and moving around it hasn't leaked, and I can pull it out of my pocket and take a great hit. The one down side is your triple wrapped claptons are going to be a little too thick to use. I see it as an upside b/c you don't need them. It does come with pre-wrapped coils and an extra glass tank. For maximum flavor you will want to replace the coils with something with more surface area, but it will hit just as well as with the stock coils. There is no spit back. Lastly, since it's wide and doesn't heat up, the drip tip is great. On a separate note, I live in VA and this thing came from Hawaii in 3 days.