I would suggest that you buy your mod and tank separately and not as a kit. Find a mod you like and search the site for reviews. Then find a tank that you like and do the same.
Some companies are better at making one than they are the other and this way you can get the best possible set-up. I would recommend you look for a tank that has a good top fill, and if you want to guarantee it doesn't leak, look for top airflow. I would also suggest checking out the price of replacement coils. Some coils can be astronomical in price.
Do you ever plan on using Temperature control? If so, you want a tank that has TC coils available and a mod that does TC well. Do you want higher wattage or the longer battery life from a dual battery set-up or would you be happier vaping under 100 watts on a single battery? There are a lot of good mods out there, it is just deciding what you want. Good Luck.
Some companies are better at making one than they are the other and this way you can get the best possible set-up. I would recommend you look for a tank that has a good top fill, and if you want to guarantee it doesn't leak, look for top airflow. I would also suggest checking out the price of replacement coils. Some coils can be astronomical in price.
Do you ever plan on using Temperature control? If so, you want a tank that has TC coils available and a mod that does TC well. Do you want higher wattage or the longer battery life from a dual battery set-up or would you be happier vaping under 100 watts on a single battery? There are a lot of good mods out there, it is just deciding what you want. Good Luck.