The bar spacing is great for my fancy little rats and there are a lot of customizable options to arrange the cage.

That being said, I got mine as an open box and it was already damaged. The posts for 2 of the wheels were bent. There were no assembly instructions, so that was challenging. Is recommend placing levels before tightening all the screws.

For the $100 I paid, I guess it's ok. Not with disassembly and return hassle at this point.