Personally, I wouldn't recommend AVG; however it isn't going to give you horrible protection. I have my own recommendations, but using AVG (since you've already paid for it) won't hurt. Just pair it up with substantial anti-malware software (HitmanPro is good, but Malwarebytes seems to be the best).
For future reference, I'd definitely recommend checking out independent reviews and tests done by places like
AV-Comparatives,
AV-Test, and
Virus BTN. It will take a little while to find the best choice for your use, but it's worth it. Some websites will give a "certification" to certain software I would never recommend using, but it's usually based on detection rates, and not overall performance. There are usually great...