I like the phone. the vibration is fine. I use blootooth for all music, call quality is fine. Phone is not extra speedy , but isnt slow. Camera is good. Everything is ok , unless you are a phone snob .
After 24 hours with the device, I am a little disappointed as well, but word was already on the street relating to the pain points I am experiencing. The benefits of this device is that it is extremely lightweight and although plastic, a very comfortable phone to hold. It is a bit more slippery but I always use a case so that is a moot point. I also find the screen to be very pleasant and very happy with the camera performance thus far.
I really dislike the look and feel of the power/volume buttons. They look and feel like they are going to fall off, haha. I also ran into some issues with the phone becoming laggy and slow responsiveness with only some moderate/light use of the device. With that said, I am disappointed that all of the high quality top spec'd devices have to be 5.5" inch plus. No wonder there is such a huge market for the iPhone 6/6s... I feel like that is the phone I need to own to have the specs I want for a size I love!
I have the 6P on preorder and have been constantly messing with my buddy's Moto X Pure to see if I can force myself to transition to a bigger size phone :/
My second major complaint with the handset is the Audio.
Google and LG should be embarrassed with the Audio they have incorporated into the nexus 5x, and to be quite frank, it is unacceptable. The Audio is incredibly tinny and low powered, even worse than the nexus 5.
Plugging in headphones makes it even worse. My nexus 5 is louder with headphones plugged in.
When I'm talking about the sound quality, I am literally talking about the quality of headphones plugged into the device. Its so embarrassingly low on the 5x its unbelievable that google and lg would see this as fit for purpose when it obviously is not.
I have Audio-Technica M50x Headphones and I would say they sound as good as on my S6 edge. I've also tested the call quality (on the T-Mobile network and using Wi-Fi calling) and people so far say I sound as good as my S6 edge and iPhone for phone calls and Hangouts. You say "touchwiz lags", but my S6 edge has been fluid besides ram management problems. I also have an iPhone 6 to compare and have tried different phones from other OEMs than Samsung and still like how the 5X is performing.
The M8 was also a $650 off contract phones back in March 2014. I don't know about far better but I would think it's still better to some degree. It was HTC's top tier phone while the 5X is Google's lower tier.