[Galaxy S II Q&A, Help & Troubleshooting] ryandi7:
Now I'm about to post the negatives and positives about this phone. I love this phone despite its negatives though. I just hate how Android isn't really optimized atm (little to no hardware acceleration and no proper multi-core utilization). I bought mine 3 weeks back.

TL;DR

The yellow tint is there (in addition to vertical lines), wi-fi is weak, wake up lag is there sometimes (about 1 sec), it gets warm (I hope this has no effect on the screen, I'd hate it if the heat ruins the screen), battery life seems to get better overtime.

These points might sound weird because I copy pasted the review I wrote to my friends.

Negatives:

1. Browser would sometimes get stuck on white blank page when switching windows (not apps, windows as in tabs), especially heavier webpages. One workaround is to switch orientations (portrait to landscape, then back to portrait).

2. This is true to all Android browsers. You will have problems with websites with scrollable frames. And pop-ups.

3. This is also true to all Android phones. Multitouch and copy paste implementations are not consistent throughout the phone. In Browser, you will find that the copy paste works wonderfully well. In some apps, copy paste isn't even implemented. This is the only area in which I think the S2 loses to iPhone.

4. Eventhough it's light, build quality does not win that of HTC. I dropped it once (more like threw instead of dropped), it has a little damage, nothing visible unless you shine direct light to it, mainly because it's black.

5. The charger you get out of the box is merely 700mAH instead of 1000mAH like those bundled by HTC. It takes roughly 3 hours to charge from 0 to 100% (if you use it while charging it can take you a whole lot longer). This brings us to next point.

6. The phone gets warm, warmer than what would feel comfortable when you use it extensively, especially when charging. This is probably why the charger supplied is less powerful, to avoid overheating. This is one reason I don't have casing.

7. The phone automatically turns down your brightness to 0% when your battery reaches 10%. This apparently has no workaround, unless you flash another ROM.

8. I've heard people saying that, eventhough this comes with Gorilla Glass, the Oleophobic coating makes it prone to scratches. I personally run around without a screen protector, and still no scratches after 2 weeks.

9. The wi-fi chip might be the low-power one. I'm getting the same amount of bars as my HTC Wildfire.

10. I'm not sure if the physical keys will play well with Ice Cream Sandwich. I heard ICS will be more like Honeycomb, meaning the main buttons are placed on-screen.

Positives:

1. 4.3" of Super Amoled Plus goodness. I can never look at my desktop and laptop monitors the same way anymore. Anything with black background looks absolutely stunning.

2. It's so powerful that I experience almost zero lag. Lags can still be felt though when you're running unoptimized apps. Whatsapp is one app in which you can feel the stutters.

3. Browsing is ultra smooth, there simply is no lag, even when browsing image-heavy sites. This is mainly because Hardware Acceleration is enabled in the Browser. And I think Samsung adopted iOS' method, you will see checkerboards sometimes.

4. Again, performance. I run Live wallpaper, listen to music, read manga, altogether without experiencing a single stutter, and I hardly ever use the Task Manager.

5. Apps are getting better. Almost all respectable companies are releasing iOS version of the app together with Android version. I downloaded a few addictive games and they're on par with the iOS version.

6. The Oleophobic coating feels really good on the fingers. Touchscreen also seems to register even the slightest of touch.

7. It is very very light, iPhone4 felt like a brick when holding them together.

8. It comes pre-installed with multiple codecs. I've loaded my phone with a few movies and they all play without a problem. 720p movies are played without any lag.

9. The hardware is pretty much future-proof. I believe it can run anything thrown at it for the next 2 years.

10. Touchwiz 4.0 is pretty good, I can't believe I actually like it.