holy crap. I switched over to Google's Project Fi just cause it was the easiest thing to switch to with good prices (and I hated Sprint). But I found out once I signed up that it is pretty epic in terms of features.
Aside from the really fair pricing model it links to my google voice/hangouts such that whenever i recieve a call i can accept it on either my computer or my phone.
Better yet the native voicemail feature on my phone is integrated such that I never need to dial a number to get my voicemails. I see them right on my phone as transcribed text and can play them back and delete them there. This is pretty much my dream feature I've wanted for decades!
Way to go google; I'm impressed.