Surface RT to Surface 2 upgrade - worth it?

I'm considering upgrading to the Surface 2, but am looking for feedback from anyone that has actually taken the jump from generation 1 to 2. At a minimum, I'm going to purchase the new Type Cover, but the chatter in the forums, and formal reviews haven't convinced me yet that purchasing a new device is worth it. (I think the original with 8.1 is working fine).