Had not seen a thread for this yet,
I see some definite consumer advantages with Sprint's Network combined with TMob and Wi-fi.
I have had many Nexus devices and I love my Nexus 6, although it is a bit big.
The price is good for the service. ($20 / unl talk/txt, $10/gb)
I hope the technical aspects work as they propose. I am a Google Voice Number user and love the "Any device" call capability and use it on my Tablet, Chromebook and phone. I rarely actually answer my Phone at the house. Answer the tablet or Chromebook.....
I love Sprint's network, the upgrades they are putting forth and this Site, but if Project Fi works as advertised, it might lure me to sign on.....
It's been this way for a couple years for me, but getting worse. It can't really get worse than it is now unless Sprint adds more customers, since they've already thinned CDMA down to the minimum. The addition of calling plus and VoLTE will take load off of CDMA, so it should start to improve actually.