I didn't get one. Had my Nexus 6P for only a month. Have one card loaded with Android Pay and used it about six times. I did get the best buy promotion though. It's probably for the better, that's a lot of McDonald's I would have to eat.
Re: Biggest Gripe: Power/Volume Button Location
Me too. It's my first phablet but I had no interest in attempting to use it one handed. I've been using my previous phone for 3+ years. Maybe I just need some deprogramming. I thought the fingerprint scanner was going to be my biggest...
7/24/1013 at around 2PM PST from Amazon.com. It said shipping now this morning (7/25) but has gone back to shipping soon. Delivery estimate is 7/31 to 8/3.
Edit: It shipped evening of 7/25.