There are some good and and bad about this gameboy.  One good thing is that you can play gameboy advanced games in there. There are two slots because of the size of the two types of cartridges. Ds cartridges are way smaller than advanced ones are.  The gameboy comes with a stylis so that you can touch the screen to get places within the screen. A lot of the DS games require the stylis to play the games. The downside of this gameboy is that the touchscreen can easily be scratch up which it makes it hard to play games. What do like about this gameboy is the clamshell where it closes up so the screen is not seen to the outside elements.

That is a hard thing to determine.  I think it would be good if there was a way to protect the screen from getting scratched.  I still have mine, but I don't use it to often these days unless I am going on a trip.