It is good, other good products are: Avast, Eset and Kaspersky.
For me good products are: detection, removal, fp, R&D, ability to track current malware trends and develop quick response for it, and not write about something months old like for example chronical slowpokes from F-Secure (and more like them) with their comedy section Sirefef/TDSS discoveries.
PS: I use Avast Free.