ESET Internet Security is the best value plan for Windows users. It includes a good variety of features for a decent price, including network protection and anti-theft controls.
ESET NOD32 Antivirus is the cheapest plan — it only includes the anti-malware engine, which makes it a good choice for anybody that wants a secure antivirus scanner and nothing more, at a good price.
ESET’s top-tier plan, Smart Security Premium, doesn’t really offer enough extras to warrant an upgrade. I like the device encryption feature, but the password manager doesn’t come close to standalone password managers like Dashlane, so you’re better off getting a separate password manager, or going for an antivirus suite with better add-ons, like Norton.
If you’re a Mac user, honestly there are better options elsewhere. I’d recommend Intego, which is designed specifically for Macs.