Cardhop's developers were bang on when they wrote, "…we learned that the whole contacts “genre” is bad. Really bad." We've all watched MacOS contacts databases come and go. What we haven't seen before is an innovative company like Flexibits, the developers of Fantastical, spend years developing an app that redefines how we interact with our contacts. My recommendations: 1. Watch their short video. 2. Download the demo. Cardhop is definitely worthy of your time.
One more thing: Apple's Contacts app has been so uninteresting that I ignored a double iCloud group listing for years. Even though this was obviously an Apple/User problem, Flexibits support stepped up and solved my issue. Thank you Kent.