3.5
What a stupid lay-out. It seemed to be designed like a giant "E", so to get from one terminal to the next, there were endless long treks from one to another. They were so long and so far apart that interminable, narrow moving sidewalks separated them (and of course they were filled with people who were unable to grasp the simple concept of Stand To The Right, Walk On The Left). So annoying. I chose to walk instead.
I had two-hour layovers, so I had plenty of time to wander around and was pretty disappointed that the shopping options weren't that interesting.
Big Plus: FREE WIFI. Woot woot!