Seems very good

I have owned my Macbook Pro for about 3 years and never had any type of Anti-Virus or Anit-Malware software on it. Decided to download something and give it a scan. THis one did find one infected file. Wish it would offer more information but I did a Google search and found out what it was. Not anything terrible but it did find it. I’ve read some reports here that one a threat was found, you had to pay to get rid of it. I did not have that experience. It found the threat and cleaned it. Never asked me to pay. It found that threat with the quick scan. I then ran a full scan and it didn’t find any others. At this point, I give it 5 starts. Simple and effective.

Dknelson about Antivirus One - Virus Cleaner, v1.4.2