mobile

The power button on my M8 is getting closer to failure and I'm considering a jump to the M9 rather than deal with a badly reconditioned m8 from the warranty center. Question being, Is it worth the Jump? I have read that it has VoLTE which i very much missed coming from a Note 3 to HTC. Does Google Wallet work on the M9? Are you happy with the device overall?

Thanks for your time.