I don't own any smok products, but if you are looking to vape super sub0hm (which most smok setups are) I'm not sure the tarot nano kit will fit your needs. It actually does have a pretty powerful internal battery for the size, but the tank is tiny and you can go sub0hm with the coils, but not SUPER sub0hm, unless I'm missing the coil. But I believe it's also a 2 ml capacity tank, so if you want to be vaping with a lot of power and clouds without filling and charging constantly via USB I don't think the tarot will be for you. It is a very pretty well-designed mod, but I use mine with a 0.5 coil and that's plenty sub0hm to me. If my description sounds like something you want well, go for it.
There are also other makers that do sub0hm well, including some other, more powerful Vapresso products. I have a Revenger kit which I am liking a lot. Possibly more expensive than you want to pay, but it is a good mod and kit.
Also, plenty of other makers out there. But, describing what you want from a vape may be helpful as far as getting recommendations...
Anna