[Nexus 6 Q&A, Help & Troubleshooting] vikramjatt11:
You have no idea how frustrated I was by this on my Note 3. I have it on Verizon since launch day (~ September 2013). I got the phone and noticed the signal wasn't too good, I figured it must be me, I should give it a few days. Well, the issue never got better, only worse. After a few weeks (now outside my return window), things really got rolling downhill.

1. The phone would show I have very little signal at my house, but I would NEVER receive any phone calls. The person calling me would tell me later that the phone rang as normal and went to voicemail. The only way I would know I missed a call is if they left a voicemail, which I would get a notification for 15-20 minutes later.

2. I couldn't make any outgoing calls from my house. The phone would give a signal error, that I have no signal.

3. My college is a 25 minute drive (~20 miles). I was able to make phone calls as soon as I drove to the end of my block, but on my drive to college, the call would drop about 3-4 times, and at the same exact locations EVERYTIME! I would know beforehand that the call is going to drop here. I was averaging ~60-70 dropped calls a month.

After this got so unbearable, I finally contacted Verizon in ~Jan 2014. The device was still under manufacturer warranty, so they said they would exchange my device. Mine you, this wasn't accomplished in the first phone call. This process took about 7-8 weeks of phone calls, every single day, and weeks and weeks of delays from Verizon. First, they would give me the BS, it's you and not our device, you must be doing something wrong, let me check for outages in your area, let me check how far the tower is from your house, let me check how many dropped calls you have, have you tried resetting the phone, let me try calling your phone right now, let me submit a technical ticket for you and this will take 7-10 business days to process, blah blah blah, the excuses went on and on. Finally, after 2 months or so, they agreed to send me a REFURBISHED replacement. Got the refurb, sent my original phone back. The refurb does the same exact thing in the same exact way as my original phone. Once again, back to calling Verizon everyday I go, and new excuses start. Sorry, we can't send you another replacement, you haven't had the device long enough to troubleshoot the problem, blah blah.

They send me my second refurb replacement about 2 weeks after the first refurb. By then, I was so tired of the signal issues with the note, this was around April of this year. When I got the replacement, I didn't even bother putting my SIM in there. Put it on craiglist for $420, sold it for $400 the next day, ordered a like new S5 for $415, and never looked back. The S5 have given me absolutely zero problems. The difference was night and day from the very second I got the phone (signal strength wise). I have dropped maybe 1-2 calls total since switching back in April. I loved my Note 3 (had upgraded from Note 2), loved it all, except the horrible horrible radios, which wouldn't let me use my smartphone for calls and data. Just writing about the experience has me pissed off again.

Waiting on my N6 now, and heres to hoping I don't have anything like my prior experience again. My family has had a few of the Droids on Verizon, and never had any signal issues with them, their radios are always exceptional. Hoping the N6 is in the same boat.