The way that they 'push' their #1 selection suggests to me that this is a scam, for example, promo codes are offered pushing you toward buying Bitdefender. I would be amazed if this site did not receive substantial kickbacks from Bitdefender. I have used the software, it turns a fast PC into a brick.
they rewrite the whole page and included the scores mentioned, in this case its fairly good review
you should look for performance scores
for advanced users most of features and help and support are useless