Summary: This was my last android phone. I moved from a Samsung Galaxy Ace 2 and I regret..why: the Sony is not LTE/4G, so data performance is not faster than in the cheaper Samsung. Battery on the Samsung lasts almost twice. Strong points in the Xperia: awesome camera with less than 2" point and shoot features (sometimes it didn't worked), awesome screen.
Summary: I really wanted a quadcore phone with native HDMI output but I could only find MHL output options. Not wanting to deal with converters and possible compatibility issues while traveling, I settled for this dual core phone with the HDMI output. After a few weeks of use I am very happy with this purchase. I have noticed a few hiccups while doing multiple processes, as I expected.
Summary: The design and functions of Xperia SL is the most amazing phone I have ever seen. The quality of the camera is perfect like you are using a Sony Cyber-shot camera. The speed and its performance is very good and quickly responding and can be easily updated from Ice cream sandwich to Android Jelly Bean 2.1. Very happy that ordered this phone considering the price and its quality.
Summary: My wife very excited about this phone. She don't use much of functions of course, but esthetic and stable work makes it great for her. I use galaxy S2 but I'm impressed with a quality of this phone as well.
Summary: I really enjoy this phone, especially the camera but it has severe speed/memory trouble. It takes a while to load applications, my music pauses if something else is processing at the same time and the battery life is horrible. Sometimes it erroneously says I have no memory to update apps. It does have a decent power-saving mode that is useful (especially at night) and I recommend using the least bearable brightness level.
Summary: Excellent device, totally recommend it. It works very well and is very cute. A little heavy but after a couple of days you get used. I bought it in January and I'm still thinking it's great. The delivery was very accurately.