Well, after day 1 with my Nexus, here are my first impressions:
Screen: Holy crap is it amazing. I was already used to AMOLED being an original Galaxy S owner, but it is in every way improved and refined. Gone are the blue-ish whites on lower brightness settings and the cross-hatching, my whites are white and the cross-hatch of PenTile is not noticeable with this resolution at all. Speaking of resolution, it's jaw dropping. First video I looked up on YouTube was the NVIDIA PureVideo HD Test vid. Absolutely stunning. I *do* have a little bit of artifacting happening with an all white or all gray screen at brightness settings below 10 percent, but above that, they vanish, and I have to look VERY closely to see them. This does not bother me in the least as I don't usually hold the phone an inch from my eyes and my brightness level is always above 10 percent.
Feel/Build Quality: Coming from early Samsung to this, I have to say, it is also improved by leaps and bounds. Yes, it is plastic, but you can tell it is high quality plastic. I have the extended battery with the extended battery door in right now, and I actually prefer it to the stock. More comfortable for me. That being said, yes, the phone is a tad slippery still. Easily remedied by the right case though.
Radios/4G/GPS/WIFI: All above average to perfect so far. 0 issues with WIFI. GPS surprised me because of how great it is! They've come a LONG way from the Galaxy S line. As an owner of a Vibrant, in my 18 months of owning it I never once got a GPS lock, even outside. With the Galaxy Nexus, I got a 5m lock in my living room, in about 8 seconds, cold boot. WIFI holds a very strong signal and is very fast. And as for 4G, I know the signal has been an issue for a lot of people, but I have to say mine is great! 3 bars, sometime dropping to 2. Not once have I dropped down to 3G in areas where there is an LTE signal. Speed tests are running so far about 15 down/10 up, and I'm just on the outskirts of my areas LTE coverage. Voice is clear and no dropped calls as of yet. Very happy in this area
ICS/Software/Performance: ICS is a HUGE upgrade over Gingerbread. If you have no experience with Honeycomb, I could see how different and new it must feel to everyone, but it felt very natural having owned a Honeycomb tablet since July. The core Google apps are awesome. Performance is unlike ANY other Android device out there today, I promise. It simply cannot be matched right now. Everything is fluid and smooth. Browser flies. The only issue with performance right now seems to be every other Live Wallpaper that isn't the default Phase Beam one. I can see that some of these wallpapers are directly from the Galaxy S and Galaxy S II line, so perhaps they just have not been properly optimized, or maybe there is a slight tweak or something that is coming. But this is not a huge deal, and I wouldn't even say the other wallpapers "lag", it's more of a noticeable dip in frame rate. It doesn't take any longer to swipe through home screens, it just feels a bit sluggish. Definitely doesn't "stutter" like it does on almost every other Android device.
All in all, I LOVE my Nexus. It will easily last me 24 months and keep me happy. It is 99.5 percent perfect. I have ONE complaint, and one complaint only:
External Speaker: My speaker is plenty loud. I can hear ringtones and notifications just fine, even in noisy environments. Here is my issue, and it is a minor one: like some people have mentioned, I find that there is a very low-volume, but still very audible, "pop" from the external speaker about 2-3 seconds after any sound that comes out stops playing. It is not very loud, but I can still audibly hear it. Now, I'll say this. I'm an audio engineer. I work with and mix audio, and I know general basic audio theory. This "pop" is a normal and it comes from the speaker basically turning itself off when it detects that no sound is currently being pushed through it. Every speaker does this, BUT, on the Galaxy Nexus, it is more audible. And it SHOULDN'T bother me as much as it does, but I guess since I work with audio and I'm programmed to hear and fix these kinds of things, it bothers me 150 times more than it really should.
And it kills me because, aside from this, my device is perfect and defect-free. I see a lot of complaints with the radios, the LTE, the screen, some complaints about performance...I have no issues but this one TINY annoyance. I know I could very easily swap it with another Nexus to try and find one that didn't produce the pop as audibly as mine does, but I'm not sure I want to risk getting one with an LTE or screen issue, as those are more important things.
But other than that this one minor annoyance, this device is great. Battery life is about what I expected with the extended battery. My first charge with moderate to heavy use on mostly LTE lasted me about 12 hours. If I can get 14 hours out of this puppy with light use throughout the day, and 10 hours with moderate usage, I'll be very happy. And there's also the possibility that my issue gets patched with a software fix, as this also was the case with my Galaxy Tab 10.1 when it first came out, but was since fixed.
If I had to rate it on a scale of 1-10 after 24 hours, I'd give it a 9.9. Love it. WIll not even think of trading it for one of the R phones.