I am not getting paid to say this

I also own the busycal2 software so purchasing this was a no brainer

Take apple’s contacts app. Feed it steroids for a year, put it on a rigourus training program during that year. And at the end of that year you would have busyContacts.

It has way better filtering than apple contacts, I was able to fix and tag using multiple rules for filtering.
I love that it picks out emails for that contact selected. I have only used the program for 2 hours before I was convinced to purchase it, as I seen that it held up to my expectations of there previous product.

This is what apple contacts should be about!!!

The real Nate James about BusyContacts, v1.0.5