My dad recently bought himself a WH-1000MX3, and after trying it myself, I wound up also buying one. Pairing it with my LG Android phone was no problem, and I'm quite impressed with both the audio quality (wired or Bluetooth) and the noise cancellation. They blow away my old MDR-NC60 set in both categories. Sony knocked it out of the park with this set.

It feels weird to shut them down and remove them in a room with modest background noise and feel, for a few seconds, that the noise is quite loud.

The only nitpick I have is, after reading the legalese, I decided that there was no way in hell I was going to use the Sony Connect app, but the phones sound so good to begin with that it's unnecessary to install it in any case.

I own a pair of Bose QCII and it cuts off when I'm walking down a busy street. Also, it maintains a connection to both my phone and laptop at the same time, but I can't hear the phone before I explicitly tell headphones to disconnect from the laptop via an app.