I am not sure that the vape you are describing exists. All mods and tanks can have issues from time to time.
For MTL vaping I'm sort of a fan of aspire (maybe an aspire zelos setup). Coils are cheaper than replacing cartridges, and it's a good beginner setup.
With that said, you really want to figure out your style of vaping, what you enjoy (e.g. more vapor, vs less, but at a higher nicotine level) and there is no mod or tank that is guaranteed to be trouble free 100% of the time.
If you post more about what type of vape you are looking for you may get more suggestions, etc.
Anna