It is hard to make this decision but I have valid reasons beyond the bullet points you have mentioned.
Firstly, UK firmware for ICS 4.0.4 is very much laggy and have camera focusing issues which also include yellow shade in night mode pictures. Facing frequent crashes with Skype, Viber and other apps which I use frequently. Apart from this WiFi is one of the other issues which puts me in utter disappointment and where Sony is unable to address the issue. It would be quite good if we talk less about battery drain, which only lasts for 5-6 hours making my phone a 'mobile landline'.
Further most important, though I live in the UK I belong to an Indian language community. My language has no support at all in Sony devices. Despite of android rendering Samsung and some other mobile handset manufacturers have extended their support to majority of indic languages even from GB 2.3.7. I personally and through various channels made repeated requests sony to enable indic support in their handsets. This issue can be solved with a single font (unicode Lohit font) and with a basic script where our friends were even ready to donate the code. Google has finally accepted our requests making indic languages with inbuilt rendering facility from JB 4.1 or later versions of Android for global indic language users mainly Telugu, Kannada and Malayalam further Gujarati, Odiya and Punjabi are in their way.
I convinced that there is no point in alerting and wasting time here with a team of deaf and/or helpless from Sony. It is better and time saving to switch to other manufacturer who renders my language making my browsing time comfortable.
