I started with a 510 - loved it. Still love it. I'd done months of reading and researching before I ordered it. Getting started with it was a breeze.
I quickly ordered extra starter kits and swapping out the batteries, topping off, refilling carts, etc. really wasn't an issue at all. I never got a pass-through, I really didn't mind keeping a few batteries charged and ready.
I was very happy and attached to my 510 and never felt the want or need to try other PV models, or mods. When I read about the eGo/Tornado it appealed to me because it IS a 510 with a long lasting battery.
Since I have an erratic schedule and it's often inconvenient to change out the batteries I did order a Tornado. It uses the same atomizers and I didn't have to change my routine with my cartridges. It's just so convenient to have that long lasting battery.
I'm still pretty new at this, but I will always love my 510. It just works for me. I still use it with the standard batteries sometimes just because I like the way it looks and feels. It's just familiar and comfortable.
I will always be grateful for my 510 as well because I was able to immediately transition to vaping and quit a heavy 25+ year smoking habit. I haven't looked back. It's awesome and life changing to be "smoke free" - finally
