This is truly one of the best places to buy new released and retro games, they are my favorite place to experience some releases early and to get old games, compared to others where most of the games they have are "garbage-licensed shovelware" games that nobody likes.
I would put 5 stars but I think they should have more Gamecube games at display. I understand that the Gamecube games aren't kind of cheap to acquire for being in an old console that at least sold 20 million copies, but I want to see more variety, at least the Gamecube games they have are truly fun and I don't see any of them being "licensed shovelware games".
Another thing is for people who want to buy DS games, they sell reproduction cartidges (cartidges who are fake) they are cheap to get if you are low of money, which is good if you want to experience playing in original hardware, but if you are a person who wants legit games I have some tips:
-First look up in Google an image of the cartidge you want, if it looks like similar to the image on Google, the cartidge might be real, but before making assumptions look to more of this advice.
-Be careful of how symetric is the "Nintendo DS" logo at the top, if it's not symetric it's a fake cartidge.
-DS cartidges are gray but if the cartidge gray color is more darker compared to other cartidges, it's a fake copy.
-If the sticker who displays the name of the game looks off. For example, it looks to have a kind of black or white like if the sticker was made in a printing machine or if the sticker looks blurry compared to the ones who apperar on Google, it's a fake copy.
The same rules applies to Game Boy Advance games (GBA) if the Game Boy Advance logo looks "off-brand" (meaning that looks different to others) it's a fake copy and also look up on Google if the game sticker looks the same to the GBA game you are looking for.
This is more an advice to people who came to the store to buy DS and GBA games than a critique store itself.