Confirmed i5 4300U.
Battery life is great too - solid 8 hours and 12 minutes today at work with 11% left at the end of the day (I sell real estate - Excel, Word, Acrobat Pro, Word Press, Outlook, Microsoft Dynamics, Internet Explorer, Bluetooth, WiFi).
SP1 and SP2 users with 4200U are experiencing problems when enabling bluetooh and wifi at the same time. Wifi performance quickly degrades when using bluetooth devices. Have you experienced anything similar with your 4300U? If you haven't, think a I will request a replacement for my SP2. I don't trust MS to solve these problems by software anymore.