I'm so excited, my two boys are in a store cage at the minute but it's too small for them. I decided to try and build a C&C and the grids have just arrived. I've set up the grids and a 2x3 looks huge! I don't have room for the preferred 2x4 at the minute but I think they'll be fine in the smaller size, it has so much extra space! Can't wait to get the correx and build the base. I'm really too excited abut this but I can't help it.