I have two of the SS 18650s and I love them. LOVE. Consistent
vape, built-in protection, great battery life, very sturdy. The unit does have a 2.5 amp limit, and there are newer lavatube versions you could purchase that
vape at a higher voltage, but I have never gone beyond 5 volts myself. I think you made a great choice and will love your new Vtube. Some folks don't care for the slightly "airy" draw, I happen to really dig it. There are adapters that you can purchase to tighten up the draw if you like, they are all ego connectors and a simple search on ecf should lead you to them.