>>713977593
It's a shitty place for tourists, 99% of stores there you can buy cheaper online but there for the sake of dumb tourists, most stores are clone of Animate (which exists all over Japan), and in terms of arcades the place is nothing special.
Eroge stores are worth going though, being able to physically browse them is pretty cool, and those places are actually hard to find outside of Akihabara, unlike Animate clone stores, and Gigo/Taito that's in every station of Tokyo.