Seriously considering bailing out of Google, heading here -- What is status of Zoho spam filters?

Seriously considering bailing out of Google, heading here -- What is status of Zoho spam filters?

The whole Google shariing all their information had got me edgy,  I'm looking for different places to do what I need/want to to.  One question I have is about Zoho's ability to deal with spam.  It's my understanding that Google is pretty much "The Gold Standard" as far as spam detection/deletion, wondering what is the general consensus here, or is there one? 

Also, I could just continue routing my emails through their servers, thus using their spam detection, and then pushing them over here, but that'd lead up to them having all the information, at least on my inbound emails.  Or would it?

What else can you tell me, the perspective Zoho convert -- any/all inputs appreciated.

Thank you!