My cell says this call is probably spam.

[dsrtao]

About 75% of the calls I received last month were tagged as spam by Google's phone service.

They were right in every case, and did not mis-tag any spam calls as legitimate or vice-versa.

Comments

[jducoeur]

Roughly similar for me, except the ratio is even higher. I'm reluctant to just take Google's word for it (especially given that my email still has a non-trivial number of false-positives "spams"), but I'm starting to do so occasionally...