I gave this a try previously and liked it very much. I waited for a deal on it for one year and got it for $9.99 for 3 devices. I liked the year I had with it. What I didn’t like was Avira automatically renewing me for another year at $44.99 without any notice. I did see something later about automatic renewal, but a heads-up would have been nice.
I am using Bitdefender now, also on a one year deal after a brief trial like this one. Honestly, when this runs out I just might go back to the AV that comes with Windows.