Right - mini assessment:
I remember almost two years ago buying the X10 and being initially amazed (it was my first touch screen phone). This dissipated over time when the problems started; poor call volume, bloated software, terrible battery life (though I think this was due to a slightly defective battery) and the then SE's poor handling of updates etc. Don't get me wrong I did like the phone but it had its flaws.
I am a little impatient - been using a Nokia N82 as an in between phone since loosing my X10. Even when purchasing the Xperia S I joked with the O2 guy about potentially how amazing the GS3 will be. I am sure it will be a better specification but probably only of note in the SoC side of things. The Xperia S will be a perfectly capable phone for at least a year. The original GS was a better spec but the X10 could do almost everything (correct me if I am wrong) the GS could do. This time the Xperia S has had two generations to learn from. My view on this phone was always going to be a little more guarded but I like what I see so far:
The phone itself is elegant and stylish, as was the X10. It is a nice feel in your hands with a solid weight. Some may not like the plastic back cover, I don't mind it but do like the slightly more premium feel of the iP4/4S. Something worth noting; the seams around the edge of the phone (front and back) appear to have noticeable gaps - there could be an issue with dust.
The obvious stand out feature is the screen. It is brilliant. The cherry picked sample pictures and videos on the phone looking stunning! Very crisp and the colours are bright and vivid. The screens of the iP4/4s and GS2 finally have something to rival them - I have only used the other two briefly but the Xperia S is at least as good if not better (when I bump into a friend with either phone - I can try a more direct comparison). Finally - the viewing angles are very good too.
Sound has been another positive of this phone. Call quality is much better than the X10 and the quality on the other end was given praise as well. The speaker phone delivered a crisp and loud sound when listening to music. I haven't had a chance to listen to music on the earphones yet.
Only had a brief play with the camera, inside my office. Fast capture is a great addition but unless you have very steady hands I expect in the real world some pictures won't come out particularly well when using fast capture. It is fast though! I did notice when taking a FC picture in the office the picture looked pretty good but became quite noisy when zoomed in. I am off to Covent Garden for lunch so will take some proper pictures then and report back.
We are all a little disappointed that Sony didn't launch this phone with ICS but I have faith this time will be much better than the fiasco of updating the X10 to 2.1. Gingerbread is perfectly fine for now - the ICS update is 'due' in Q2. The UI runs like a dream, almost all actions are fluid and easy on the eye. The only minor fault is it is still not as fluid as iOS IMO; some times when changing home screens I sense a very minor jolt and this is more noticeable when pinch zooming out of the home screen to display all the widgets. The default home screens are littered with widgets so perhaps if I toned it down this minor issue will go away. ICS runs pretty damn well on my TouchPad, I forget it is an alpha - so I am sure the UI and responsiveness will improve with the update.
The capacitive buttons were an issue with most reviews, the majority saying it takes a few days to get used to them. For me it didn't take much time at all but I still miss ~1/10 button presses and it will take me a few days to get used to them in the dark.
The battery doesn't seem great, well not as good as some of the reviews (Engadget got two days of light use). It looks like about a third of the battery has drained since 7/8am with some moderate use of Google Play over WiFi and tinkering with Cerberus (including the GPS). I have yet to properly tweak sync setting etc and have only charged the battery once (takes a few times right?). It does charge quickly though - a welcome edition.
In short - I like what I see. It is a beautiful and capable phone but I need more time over the weekend to try out all of the other features, whilst trying to complete ME3

.