I really wonder its battery life with this new Intel processor. Both with average usage and also in idle mode.

I had a tablet with Intel Atom CPU on it about 10 years ago, the performance and battery life was good during usage but it would stay only 4-5 days in idle before running out of battery (even if left it with 100% battery). But I can leave my iPad aside and come back to it 2 weeks later and it still holds most of its battery.

Having said that, this tablet really looks nice and if it also turns out to have long battery life, I might give it a try.