Is it easy to navigate?

Yes, if you follow the signs. Feels chaotic at best. With airlines cutting back on flights time for connections are difficult. I would wear sensible shoes because you may have a brisk walk if not run to the next gate.

Yes

I had to change planes we only had 20 minutes from Landing to boarding about a 10-minute walk but made it in time

Sort of. Coming from E terminal to C I missed the sharp left turn at the hub but it was a relatively quick fix

Very easy to read layout

Yes very easy now

Very!!