Those of you who still use KVS in the spring 2020 and also use currently or previously used ExpertFlyer as a paid service, how does KVS nowadays stand out or differ from EF? Is it worth paying for KVS as well, besides EF? Is there anything to gain as a FFP junkie?

I haven't used KVS for several years now, since I didn't see how it was better/more useful than EF. I would be interested to hear some recent comparative reviews regarding KVS, especially for oneworld and Skyteam use, but also AS and non aligned airlines.

Thank you!