Good, but dusty!
I ordered these for rats too and they're a really good size, I'm sure our lot will get hours of joy out of them!
The thing which lost them marks however, was the fact that I opened the packet and loads of sawdust fell out onto my living room floor! I shook the stairs out outside and brushed them down, but I'm still going to have to give them a good wash before putting them in the cage. Rats have very sensitive respiratory systems, so they're not suitable if they're really dusty.