“Great if you want to feel "Fancy"!”
Ginza is an awesome place to visit if you want to dress up little and live a little luxuriously for a day. The shops here are amazing for high-end fashion goers and foodies. Of particular interest to me was the massive 12-floor Uniqlo building - the biggest in the world.
There are also a number of high-end department stores with amazing groceries as well - from super-fresh Japanese pork to high-end cakes and sweets. Restaurant goers will appreciate the plethora of sushi restaurants nearby too, as Ginza is situated very close to Tsukiji market.
Even if you aren't into dressing up or living the fancy life, Ginza is great for simply people-watching and getting in a different vibe from Tokyo's other districts.