The Galaxy S2 is with large distance the fastest smartphone that I've ever had in his hands. Applications, Internet etc ... incredibly fast.
With a little practice can this mobile phone is good personalize. The Syncronisation by gravel went smoothly. Without much bla-bla can be here and so well to create or convey its music, pictures, contacts. Who knows iTunes, know how much you can be angry.
The display is colorful, has a good contrast and responded beautifully to the touch inputs. Unfortunately, it does not come close to the Retina Display of the iPhone. It lacks the 'wow' factor.
Unfortunately, the battery power is low. The plastic processing, especially the battery cover is a joke for a phone in this price range. Many Galaxy owners have major problems with the Wi-Fi reception in the domestic network - including myself. While LG and iPhone full reception have, my Galaxy frequently loses connection, or has a very bad reception. The feel of the Galaxy feels without silicone sleeve simply just cheap.
5 stars would be quite in it, were it not for this (widespread) WLAN problems and Samsung have built the cell phone quality (such as iPhone).