I'm sorry to have to say this, but I think the false positive rate is far too high to recommend inexperienced users to use Comodo Antivirus.
You should consider, that it's impossible for inexperienced users, to decide, if a file is probably a false positive. And removing a false positive may also harm the systems security, but for sure it will result in an application, which isn't working as it should.
On the one hand, it's nice to know, that CAV has over 5,000,000 signatures in its database, but on the other hand, that's no benefit at all, if all alerts I get are related to false positives (I'm talking really about false positive virus alerts, I've disabled heuristics completely).
I'm very impressed about the fast feedback you get, if you report false positives at the forums, but remember, we're talking about inexperienced users - from my experience I can say, they probably don't even know about false positives - most see an alert, click delete and are happy, if there are no more alerts...
Also many alerts about false positives make you less sensitive about real threats. So, if you had 10 alerts, asked 10 times an experienced friend, he said 10 times "don't worry, you're scanner was wrong, this file belongs to application xy and isn't a virus, look here are the results from other scanners..." What would you do the 11th time? Right... At least you would ask yourself, why using an Antivirus software, that always alerts you about safe files...
So, please consider your strategy in adding malware signatures to the database. I don't know, how you test them at the moment against false positives, but I think, that this procedure needs to be improved urgently in order to get a higher quality at the signatures.
Kind regards, BigMike