That's a great cage! I have a C&C for my hedgehog, Echo, as well!
One suggestion, though, I would add a full lid to the cage using spare grids and zip ties. All cages need a lid, and, that way, you'll never have to worry about an escaped hedgie.

 

As well as adding a lid as mentioned you will need to watch that he can't get through the square openings. Most people use the grids with nine squares across to prevent their hedgehog from squeezing through. Pretty much if he can get his whole head through then he can probably squeeze his whole body through.

 

Hi nikki and AnnaLK! Thank you so much for your suggestions! Will be working on his lid

I wasn't able to find the smaller sized cube grids apparently they are not available here in my country. Anyway I'll just increase the height of the coroplast so at least he wouldn't be able to reach the openings

 

You can always run to walmart or a fabric store and grab some clear thick vinyl to line the cage with . That is what i did and it works great they cant climb the walls or try to be stealthy.