I currently have the Brisbane cage and planning on getting the Congo cage soon. Just wondering if anyone has the Congo cage and how they like it? Hope to hear some feedback.thanks

I have the HQ Large Sturdy, which is basically the same as the Congo, but not designed specifically for sugar gliders. The HQ lrg sturdy has the six sliding feeder doors on front panel, and doesn't come with shelves and ladders. The ladders are not a great idea anyway, but a shelf or two in a cage that size can be quite versatile. The Congo is, I believe made by HQ also and the dimensions are the exact same as well.

Any more opinions?

Yes, another popular large cage is the Critter Nation, and All Living Things, they are also basically the same, ALT I believe is sold at PetSmart.