For a regular user, the touchscreen no longer works and is visibly damaged, the fan spins exclusively at 11000rpm making the entire device rattle and vibrate, as well as, ironically, overheating. I've cleaned it, changed the thermal paste, done maintenance to it, but to no avail. Also, 2 keys pop out easily. The computer gives blue screen issues all the time, NFC stopped working, the graphics card can't do much before it starts to flash the screen.
Would I suggest this? Definitely not. The aging was terrible and right now I have to find a replacement fan or another computer. Never again with a VAIO.
I'm loving this computer. It is extremely light, fast, portable and easy to use.
The Core i5-4200U is more than suitable for this computer, especially since it barely uses any battery. My autonomy is, with the battey locked at 80% max capacity, around 5 and a half hours of word processing. The SSD is small, but I have 65GB free after I passed my pictures and documents, granted the music was left outside on an eHDD.
I'm not having many WiFi issues. Mostly shorter range than usual, but works fine. I do have an issue where I can't update the driver to the latest, since I'm running Windows 8.1 and the driver is for Windows 8. Sony has been unable to help me other than "rollback to windows 8 and update, the reupgrade to 8.1".
Would I suggest this? Definitely. Great device, very light, beautiful, very portable, very fast, very attractive, and for my needs, very suitable.