I remember I had some trouble with battery drain in standby mode. I usually hade to charge my device everyday, but when I turned Bluetooth ON I only lost 4-5% over an 8-9hour session during the night, so connected standby battery life greatly improved!
Im selling my first gen Surface today, so I will be placing an order for Surface 2 today also!
Nice! I also had the original RT and now have the Surface 2. Marked improvement on all counts! You are going to enjoy using it.