In a couple of weeks I have a flight through Narita with a seven-hour layover. Most other times I've gone through there I've been traveling or connecting domestically in Japan, so there's been plenty to do in the airport. But this time I'm going ICN-NRT-ORD on JAL+AA via Terminal 2, so it looks like I'm confined to just a few shops and restaurants on the airside of the terminal.

Is it worth the hassle to go through immigration so I can enjoy what's on landside of the terminal (reflexology, better restaurants, better shopping, etc...) and then go through immigration again to get back to my gate? Is it a hassle at all? In your opinions, is it worth the effort?